Nature-based solutions can play an important role in improving the supply and quality of water and reducing the impact of natural disasters, according to the 2018 edition of the United Nations World Water Development Report. The study, which will be presented by Audrey Azoulay, Director-General of UNESCO, Gilbert Houngbo, Chair of UN-Water, at the 8th World Water Forum in Brasilia (Brazil), argues that reservoirs, irrigation canals and water treatment plants are not the only water management instruments at our disposal.
In 1986, the State of Rajasthan (India) experienced one of the worst droughts in its history. Over the following years, an NGO worked alongside local communities to set up water harvesting structures and regenerate soils and forests in the region. This led to a 30% increase in forest cover, groundwater levels rose by several metres and cropland productivity improved.
These measures are good examples of the nature-based solutions (NBS) advocated by the latest edition of the report, Nature-based Solutions for Water. It recognizes water not as an isolated element, but as an integral part of a complex natural process that involves evaporation, precipitation and the absorption of water through the soil. The presence and extent of vegetation cover across grasslands, wetlands and forests influences the water cycle and can be the focus for actions to improve the quantity and quality of available water.
“We need new solutions in managing water resources so as to meet emerging challenges to water security caused by population growth and climate change. If we do nothing, some five billion people will be living in areas with poor access to water by 2050. This Report proposes solutions that are based on nature to manage water better. This is a major task all of us need to accomplish together responsibly so as to avoid water related conflicts,” declared the Director-General of UNESCO.
“For too long, the world has turned first to human-built, or “grey”, infrastructure to improve water management. In so doing, it has often brushed aside traditional and Indigenous knowledge that embraces greener approaches. Three years into the 2030 Agenda for Sustainable Development, it is time for us to re-examine nature-based solutions (NBS) to help achieve water management objectives”, writes Gilbert Houngbo, Chair of UN-Water and President of the International Fund for Agricultural Development in the foreword of the report.
Focusing on ‘environmental engineering’
So-called ‘green’ infrastructure, as opposed to traditional ‘grey’ infrastructure, focuses on preserving the functions of ecosystems, both natural and built, and environmental engineering rather than civil engineering to improve the management of water resources. This has multiple applications in agriculture, the greatest consumer of water by far. Green infrastructure can help reduce pressures on land use while limiting pollution, soil erosion and water requirements by contributing to the development of more effective and economic irrigation systems, for example.
Thus, the System of Rice Intensification, originally introduced in Madagascar, helps restore the hydrological and ecological functioning of soils rather than using new crop varieties or chemical products. It enables savings of 25 to 50% in water requirements and 80 to 90% in seeds while raising paddy output by 25 to 50%, depending on the region in which it is implemented.
It is estimated that agricultural production could be increased by about 20% worldwide if greener water management practices were used. One study cited by the Report reviewed agricultural development projects in 57 low-income countries and found that using water more efficiently combined with reductions in the use of pesticides and improvements in soil cover, increased average crop yields by 79%.
Green solutions have also shown great potential in urban areas. While vegetated walls and roof gardens are perhaps the most recognizable examples, others include measures to recycle and harvest water, water retention hollows to recharge groundwater and the protection of watersheds that supply urban areas. New York City has been protecting its three largest watersheds since the late 1990s. Disposing of the largest unfiltered water supply in the USA, the city now saves more than US$ 300 million yearly on water treatment and maintenance costs.
Faced with an ever-increasing demand for water, countries and municipalities are showing a growing interest in green solutions. China, for example, recently initiated a project entitled “Sponge City” to improve water availability in urban settlements. By 2020, it will build 16 pilot Sponge Cities across the country. Their goal is to recycle 70% of rainwater through greater soil permeation, retention and storage, water purification and the restoration of adjacent wetlands.
The importance of wetlands
Wetlands only cover about 2.6 % of the planet but play a disproportionately large role in hydrology. They directly impact water quality by filtering toxic substances from pesticides, industrial and mining discharges.
There is evidence that wetlands alone can remove 20 to 60% of metals in water and trap 80 to 90% of sediment from runoff. Some countries have even created wetlands to treat industrial wastewater, at least partially. Over recent years, Ukraine, for example, has been experimenting artificial wetlands to filter some pharmaceutical products from wastewater.
However, ecosystems alone cannot perform to totality of water treatment functions. They cannot filter out all types toxic substances discharged into the water and their capacity has limits. There are tipping points beyond which the negative impacts of contaminant loading on an ecosystem becomes irreversible, hence the need to recognize thresholds and manage ecosystems accordingly.
Mitigating risks from natural disasters
Wetlands also act as natural barriers that soak up and capture rainwater limiting soil erosion and the impacts of certain natural disasters such as floods. With climate change, experts predict that there will be an increase in the frequency and intensity of natural disasters.
Some countries have already started taking precautions. For example, Chile announced measures to protect its coastal wetlands after the tsunami of 2010. The State of Louisiana (USA) created the Coastal Protection and Restoration Authority following Hurricane Katrina (2005), whose devastating impact was magnified by the degradation of wetlands in the Mississippi Delta.
Nevertheless, the use of nature-based solutions remains marginal and almost all investments are still channelled to grey infrastructure projects. Yet, to satisfy the ever-growing demand for water, green infrastructure appears to be a promising solution complementing traditional approaches. The authors of the report therefore call for greater balance between the two, especially given that nature-based solutions are best aligned with the Sustainable Development Goals adopted by the United Nations in 2015. Coordinated by the UN World Water Assessment Programme of UNESCO, the United Nations World Water Development Report is is the fruit of collaboration between the 31 United Nations entities and 39 international partners that comprise UN-Water. Its publication coincides with World Water Day, celebrated every year on 22 March.
Restoring the Caribbean to the paradise it used to be
When people think of the Caribbean, it’s the turquoise seas, clean beaches, coral reefs teeming with fish, turtles and balmy breezes that come to mind.
For us, this paradise is what we call home. We depend upon its riches for sustenance and, often, to make a living. It is the origin of much of the pride we feel when we say we are from the Caribbean.
Increasingly however, the reality does not live up to expectations—we may arrive at the seashore to find it covered with sargassum, the water cloudy and brown, and the horizon covered in trash; the coral reefs may look faded and tired and with barely enough fish to count on one hand…
For visitors, what version of the paradise they may find is becoming unpredictable and some may never return, depending on their experience.
For locals, it’s a different matter—as seafood prices go up and children develop rashes after swimming in the ocean, and as houses flood after each storm and tourists turn their backs on the islands, the paradise is increasingly looking less idyllic.
Sounding a wake-up call to protect the reefs
More than 100 million people in the wider Caribbean region live on, or near the coast in a complex ecosystem with the highest number of marine species in the Atlantic Ocean.
Shallow-water coral reefs, mangroves, seagrass beds, lagoons, estuaries and beaches as well as coral banks and rocky outcrops in deep waters together make up the coral reef sub-ecosystem, the richest in biodiversity in the wider Caribbean region.
Almost 10 per cent of the world’s coral reefs are found in the Caribbean Sea and Gulf of Mexico, and 45 per cent of the fish species and 25 per cent of the coral species are found nowhere else in the world. With an area of 10,429 square kilometres of mangrove forest, the adjacent North Brazil Shelf has the highest mangrove coverage of any large marine ecosystem.
This wide ecosystem supports three of the region’s major fisheries—reef fish, spiny lobster and conch—and is the foundation of the region’s tourism industry. Coral reefs, mangroves and seagrass beds also play an important part in coastal and shoreline protection under normal sea conditions as well as during hurricanes and tropical storms.
A 2016 study by the World Bank put the economic value of the Caribbean Sea alone at US$407 billion per year. Yet this precious ecosystem is at the heart of competing economic and social demands as well as natural stresses and threats.
Pollution from activities on land and at sea degrades and destroys the reef. Many once-abundant species are now threatened or endangered.
Hurricanes are becoming more frequent and more severe, resulting in great destruction and loss of lives, leaving both the coastline and local communities more vulnerable to future shocks.
A strategy to keep it pristine
Since 1981, UN Environment’s Caribbean Environment Programme has been working with the region’s national governments to better manage and use coastal and marine resources.
Following the establishment, in 1983, of the Cartagena Convention—the only legally binding agreement for the protection of the Caribbean Sea—the programme has relentlessly worked to gain acceptance of, and agreement upon, three protocols or agreements to combat oil spills [the Oil Spills Protocol] coastal and marine biodiversity [the Specially Protected Areas and Wildlife Protocol] and pollution [the Land Based Sources of Marine Pollution Protocol] among its 28 member states and 14 territories.
As a result of the analysis of the wider Caribbean region conducted between 2007 and 2011 by the joint United Nations Development Programme and Global Environment Facility’s Caribbean Large Marine Ecosystem Project (2009–2014), the coral reef sub-ecosystem was given priority in a regional strategy to address transboundary problems that compromise the ability of the Caribbean Sea and the region’s living marine resources to support social and ecological well-being and resilience.
In the last two years, the Specially Protected Areas and Wildlife Protocol, together with the Caribbean and North Brazil Shelf Large Marine Ecosystems Project 2015–2020, published the Report on the State of Marine Habitats in the Wider Caribbean, which then became the basis for the Regional Strategy and Action Plan for the Valuation, Protection and/or Restoration of Key Marine Habitats in the Wider Caribbean 2021–2030. The strategy recommends a series of measures to support the people, economies and ecology of the region, targeting coral reefs, mangroves and seagrass beds in particular.
Using an integrated approach, participating governments and stakeholders from academia, civil society, the private sector, and regional and global agencies are working together to enhance management and conservation of the coral reef sub-ecosystem in support of sustainable development.
UN Environment’s Caribbean Environment Programme, as Secretariat of the Specially Protected Areas and Wildlife Protocol, has been working to revamp the Caribbean Marine Protected Areas Managers Network and establish a regional wildlife enforcement network, in efforts to improve marine biodiversity management. Assisting the region and its countries in co-executing the strategic action plan is another important step in this direction. The Caribbean Environment Programme is driving the process, building the alliances needed to ensure the integrity of Caribbean coral reefs, seagrass beds and mangroves, in the hope to bring back the paradise we all expect.
The Perilous Migration of Birds through Cities
How many birds flying into buildings die,
Thinking the glass reflection is the sky. — with a nod to Kansas poet Madeleine Aaron
Bird migration is a wondrous and majestic phenomenon. One may witness flocks of colorful songbirds sweeping the skies, geese gliding in a V-shape of beautiful symmetry, or a great hawk soaring above and diving for prey at 120 miles per hour.
About half of all birds in the world migrate, and even the smallest may travel remarkably long distances. Incredibly, the tiny hummingbird can fly nonstop 600 miles over the Gulf of Mexico. Some round-trip migrations can wind their way for as long as 44,000 miles.
Most songbirds migrate at night, and nocturnal travel makes their journey particularly perilous in light of human development. Birds face many obstacles along the way, including extreme weather events and lack of habitat. Yet, one particularly tragic and preventable peril remains: human-made structures.
Scientists estimate an astounding upper-level figure of 1 billion birds that die in the U.S. each year from building collisions. Making matters worse, 40 percent of the world’s bird species are already in decline. In the last decade alone, four birds became extinct and four more are “on the verge of extinction.” Nearly one in five bird species in Europe is at risk of extinction.
Artificial light from buildings draws migratory birds like a beckoning siren, luring them toward lit cities where skyscraper glass reflections are plentiful and deadly. What appear to be skies and trees turn out to be deceptive reflections, and as the birds glide toward the images, they slam into glass. Many are killed instantly, while some are seriously wounded.
Scientists at the Cornell Lab of Ornithology have investigated light pollution and bird migration patterns in major U.S. cities to determine where collision risks are highest. They report that the median light exposure to birds in cities is 24 times higher than the countrywide average. Chicago tops the list of dangerous U.S. cities for birds, followed by Houston and Dallas. This is true for both fall and spring migrations. Other dangerous metropolises include New York, Minneapolis, St. Louis and Los Angeles.
The central region of the U.S. happens to be a superhighway for bird migrations. Every spring and fall, over 5 million migrating birds comprised of 250 species pass over Chicago, where the city’s glass skyscrapers and artificial light become a death trap. Scientists from the Field Museum in Chicago have been counting dead birds at just one building (McCormick Place) since 1978. By 2002, the numbers had totaled 29,842 birds from 140 species. Chicago clearly has to be a major focus for conservation efforts during migration periods, as should the other hazardous cities identified in the study.
Another useful lesson from the Cornell study is one of timing, and this can help birds in many geographic regions of the U.S. Particularly crucial is the ability to pinpoint specifically when the birds face the greatest risks in each region. Fine-tuning the weeks when help is most needed can have a substantial impact on saving birds.
Researchers discovered that while a migration may continue over a six-month period, it “occurs in sporadic waves,” with the vast majority of birds passing through dangerous locales on just a few nights. Half of all migratory birds each season passed a metro location on approximately 7 to 10 nights during their migrations. This means helping birds, even for a period as short as a week, can have a significant impact. Really though, we must do more.
How Can We Lower the Rate of Bird Collisions?
For low-rises and high-rises, minimizing artificial window light is highly beneficial. This can be done by turning out the lights at night, drawing curtains and blinds, using a small lamp on a table rather than bright ceiling lights and introducing lights with motion sensors in office buildings.
Additionally, participating in Lights Out projects during peak migration times saves many birds. For the average reader, this is as simple as turning the lights out after 11 pm during fall and spring migration months. For building owners, minimizing exterior lighting is also essential. Lights Out programs are being organized in many major cities and have saved thousands of birds. A two-year study by the Field Museum using McCormick Place in Chicago found that turning off the lights resulted in an 83 percent reduction in bird window-collision deaths.
Chicago Bird Collision Monitors rescues injured birds and counts fatalities each morning during migration. Notably, they rescued an injured peregrine falcon (on the endangered list) that was restored to health and released. “We know that before all buildings were participating consistently in Lights Out, there was a foggy night in 2002 when many birds were migrating where a single building was reported to kill over a thousand birds in one evening,” said Annette Prince, the program’s director. “Chicago Bird Collision Monitors worked with buildings to get better participation in Lights Out and by 2004, saw 100 percent participation in light reduction so that subsequently we have never had a single building kill so many birds at once.”
The Cornell Lab of Ornithology has a live bird migration map, so one can view in real time when birds are migrating through one’s locale and be cognizant of light pollution during peak days. It is important to note that turning lights out whenever possible is also beneficial outside of migration periods, as scientists have shown that substantial numbers of collisions can and do occur outside of migration periods, even in winter.
Bird-friendly architecture for new construction is essential, as is mandatory legislation. Additionally, adding bird-safe architecture to green building certification standards is recommended by scientists. The extent to which architectural changes can affect bird collision incidence is illustrated by the recent renovation of New York’s Javits Center – a building previously responsible for the most bird deaths per year in New York. To help mitigate the problem, architects replaced dark-mirrored glass with glass that had a subtle fritted pattern, and also added a green roof for nesting. The project was a remarkable success, reducing bird collisions by 95 percent. Other architectural strategies are installation of UV-coated glass, translucent glass and indented windows with shutters. Legislation requiring implementation of these strategies is crucial to saving birds from collisions.
Chicago proposed bird-friendly building legislation at the beginning of the year. The ordinance would limit the percentage of transparent or reflective glass that can be used in new and renovated construction exteriors. Specifically, it would require that from the ground to 36 feet up, at least 95 percent of the exterior cannot be covered in glass, or must use glass containing frosting, etching or screens. Nonessential exterior lighting would also be required to automatically shut off after 11 pm. Chicago’s legislation was introduced by Alderman Brian Hopkins and is supported by Bird Friendly Chicago. It is expected that real estate developers will oppose the bill. Michael Cornicelli, executive vice president of the Building Owners and Managers Association of Chicago, communicated that the portion of the bill requiring adoption of bird-friendly architecture to renovations of existing buildings would be “a potential sticking point.” San Francisco and Toronto already have bird-friendly legislation in place to serve as a model.
On a national level, U.S. Rep. Mike Quigley, a Democrat who is also a Chicago resident, has reintroduced the Bird-Safe Buildings Act (H.R. 919), which he has tried four times to pass since 2010. Dr. Christine Sheppard, director of American Bird Conservancy’s Glass Collisions Program, notes, “The legislation would help address one of the greatest human-caused threats to birds. Although this legislation is limited to federal buildings, it’s a very good start that could lead to more widespread applications of bird-friendly designs and use of bird-smart glass solutions.”
When enacted, these bills will reduce bird collision deaths, and in the next few months, we will see how they fare.
In the meantime, researchers recommend that residents take a few of the following precautions to help minimize window collisions: angling windows to reduce reflection, keeping indoor vegetation away from windows, installing netting, ultraviolet-reflecting glass or decals spaced closely together. And of course, simply turning out the lights helps.
These same strategies can be used in any city around the world where migratory birds traverse. Collectively, we can reduce the incidence of bird collisions and help the many already threatened species to have a better chance of survival.
In the coming months, look to the sky and around you. Stop awhile and you will hear birdsong, more in the morning but also during the day; wee warblers with deceptively loud melodies, cardinals singing their sweet song, and if you look carefully you might catch a glimpse of a puff of bright yellow, the source of that surprising volume. These and others are growing families and enriching our lives before they prepare for the thousands of miles long autumn journey to their winter homes.
Author’s note: first published in Truthout.org
How we unlock transformational change to save our Forests
Back in May, the Tropical Forest Alliance (TFA) hosted its Annual Meeting in Bogotá, Colombia’s high-altitude capital, which brought together 300 leaders from the worlds of business, government and civil society. As well as having an acute awareness of the importance of forests in solving our global climate and biodiversity crises, they have a huge weight of collective influence.
The meeting was invigorating. It was upbeat. Yet it also zeroed-in on the considerable challenges we still face. And I think everyone left with a real sense of urgency and a determination to stop the ecocide.
If you were there, I need to thank you, once again, for contributing. If not, I want to give you a quick update on the tenor of the discussions, and three commitments we made.
So, first, the meeting itself.
It was great to be in Bogotá, to be co-hosted by the Colombian Government, and to hear directly from the President about his determination to address deforestation. The country has committed to a US$20 million fund to promote low-carbon investment, and to eliminate deforestation from meat and dairy production. And, beyond halting deforestation, there is a strong intention to reverse the process – by restoring hundreds of thousands of acres of degraded land and planting 180 million trees.
A central theme was the promise of jurisdictional or landscape-based approaches, which address the economic viability of rural economies. And we heard from stakeholders from several regions that are making real progress, like Indonesia’s Siak district, and Colombia’s Department of Caqueta.
These jurisdictional approaches are not new. But they have emerged as an effective way to complement the type of supply chain initiatives that have traditionally been the focus of the TFA community. We are therefore convinced that the most effective thing we can do going forward is catalyse collective action in the world’s key production landscapes.
A clear pace setter is the Mato Grosso region in Brazil and its Produce, Conserve, Include (PCI) platform and strategy. First launched in 2015, the PCI is helping the region’s vast but often impoverished agricultural economy to co-exist with the 60% of remaining forest cover. And a new innovation, supported by several NGOs, is the PCI “Pitch Book” – a menu of readymade, plug-and-play solutions for businesses to actively engage in the landscapes from which they are sourcing.
Of course, it wasn’t all good news. The latest Global Forest Watch figures were shared, and the overall picture is not good. Although the 2018 rate of deforestation fell back from the 2016 and 2017 peaks, 12 million hectares of tree cover were lost, and the underlying three-year trend is still heading upwards, with some deeply worrying incursions into protected forest areas and indigenous lands. However, a reason to be optimistic is the situation in Indonesia, where deforestation has all but stopped – demonstrating the success of its national and regional initiatives and providing inspiration to the wider forest community.
China’s attitude to commodity supply chains and deforestation was another strong theme, and we were delighted to announce that the TFA is launching a programme of activity to support the Chinese Government ahead of the UN Biodiversity Conference in Kunming in 2020. Against this backdrop, we believe there is a clear rationale and opportunity for the Chinese state to engage in the forest debate and wield its considerable influence.
Accelerating into 2020 and beyond
We closed the meeting with three commitments:
-The consensus from Bogotá was the need for system-level change. For example, there were clear calls for the creation of a Global Accord on Commodity Sourcing. Brokering such an agreement falls outside of the TFA’s traditional remit, but we will explore what such an accord may look like and how it could be pursued.
-There was strong endorsement for the TFA to continue to catalyse collective action on jurisdictional initiatives. By complementing (but not substituting) supply chain actions, this promises to be transformational.
-We all need to accelerate towards 2020, making what progress we can, whilst also framing a compelling post-2020 agenda. For example, we will consult across our membership to broker a consensus. We will also continue to highlight the effectiveness of jurisdictional leadership – aiming for the subject to be high on the agenda at the UN Climate Action Summit in New York this September.
Finally, we confirmed that the next TFA meeting will take place in Indonesia – a country that has done more than any in the last few years to reduce deforestation, although significant challenges do remain.
A lot needs to happen in the intervening 12 months. Everyone in the forest community needs to be held to account, and we are only going to accelerate progress by working better together. So let’s be humble about what we have achieved, let’s be frank about the challenges, and let’s agree on a compelling vision for a #ForestPositive future.
International action can scale up hydrogen to make it a key part of a clean and secure energy future
The world has an important opportunity to tap into hydrogen’s vast potential to become a critical part of a more...
Guiding a new generation of learners on inclusive green economy
As population numbers continue to grow and material resource use rises to unprecedented levels, the limits of today’s dominant model...
Thailand’s Inequality: Unpacking the Myths and Reality of Isan
For decades, the ethnically and linguistically diverse people of Isan, Thailand, have been the subject of pervasive bias, often described...
Special Course on “China’s Foreign Policy and Economy-2019” Launched in Armenia
The “China-Eurasia” Council for Political and Strategic Research in cooperation with the Armenian State University of Economics, started the “Rethinking...
UNWTO and Ministry of Tourism of Indonesia join forces to promote gastronomy tourism
The World Tourism Organization (UNWTO) together with the Ministry of Tourism of Indonesia have announced the launch of the UNWTO...
IEA and African Union hold first ever ministerial meeting on development of Africa’s energy sector
The International Energy Agency co-hosted a joint ministerial summit with the African Union Commission (AUC) on Wednesday that brought together...
Russia, Africa and the SPIEF’19
In 2019, four African countries – Côte d’Ivoire, Lesotho Niger and Somalia – for the first time attend the St...
South Asia3 days ago
Gentlemen’s game or Propaganda? Cricket and the India-Pakistan Voices
New Social Compact2 days ago
Why People Run: Motivation Theory Applied to Diverse Migration
Economy2 days ago
Retirees worldwide will outlive their savings by a decade – and women will fare worse
Style2 days ago
Jaeger LeCoultre Presents Three New Rendez-Vous Sonatina Dedicated To Peaceful Nature
Energy News2 days ago
IRENA to Present Innovation Pathway to Renewable Energy Growth at G20
Middle East3 days ago
Who benefits most of suspicious attacks on oil tankers, tensions in the Gulf?
Intelligence2 days ago
March to Tripoli, or a Third Civil War in Libya: Initial Results
Africa2 days ago
Russia joins Gulf states in coaching Sudan’s military