Finding the sweet spot: How to scale up and finance ecosystem-based adaptation

Banjul, The Gambia. Used under Creative Commons license. Photo credit: Roel van Deursen
Banjul, The Gambia. Used under Creative Commons license. Photo credit: Roel van Deursen.

By Julie Mollins, Forests News (CC BY-NC-SA 4.0).

Protecting and restoring landscapes and building sustainable agroforestry systems is a powerful way to boost resilience to climate change and extreme weather events while supporting billions of livelihoods.

Incorporated into the international framework on climate change in 2011 at COP17, adaptation became a specific area of focus at the U.N. COP26 climate summit in Glasgow, where a work program was established to define specific global goals pertaining to it.

At the Center for International Forestry Research and World Agroforestry (CIFOR-ICRAF), scientists are working on developing robust ecosystem-based adaptation strategies.

They must be part of broad, systems-wide approaches integrated into economic, political and social strategies, said Patrick Worms, senior science policy advisor at CIFOR-ICRAF, who led a side event discussion at COP26.

“The solution is thus not rocket science, but something much harder: the ability of our institutional systems to work across silos to jointly manage this fragile planet of ours.”

Patrick Worms, senior science policy advisor at CIFOR-ICRAF

“We need to embed ecosystem adaptation – just like we need to embed mitigation – in the way the economy works, in the way government works, in the way that everything works, as we try to arrest carbon buildup, ecosystem degradation and biodiversity loss,” Worms said.

Lalisa Duguma, a scientist in the CIFOR-ICRAF Sustainable Landscapes and Integrated Climate Actions team, is working on a large-scale ecosystem-based adaptation project, funded by the multi-billion-dollar Green Climate Fund (GCF) which aims to promote the climate-resilience of rural communities in Gambia.

One difficulty working in African countries is that data on climate is scarce and inconsistent, which makes it a challenge to determine the extent of interventions required.

“Most is based on global data sets downscaled to the local context, but in this downscaling process, a lot of contextual realities are missing, which could inform the design process much better,” Duguma said.

Other challenges involve a lack of human resources and institutional capacity to implement adaptation actions, resource mismatches and how to measure the impact of interventions.

“In most ongoing adaptation actions, there is no clear strategy for scaling up – how scaling should go forward,” he said.

To address some of the challenges around capacity and infrastructure in Gambia, a baseline for tree cover was established, leading to investments into nine central nurseries and 100 million seedlings a year, said Malanding Jaiteh, who manages the $20 million, six-year forest restoration project on behalf of the country’s Ministry of Environment, Climate Change and Natural Resources.

Another challenge is livestock grazing which can compromise restoration efforts, making it difficult to plan and establish. Grazing is free range in Gambia, and even takes on an international dimension as nomadic herders at times enter the country from Senegal.

“Transmigration presents serious challenges, especially to our newly established seedlings or newly established planting areas — farmers may be planting in the agricultural lands, but as soon as they are gone, or two years later, you know, some other population can come in and start destroying them,” Jaiteh said.

Fires are also damaging and demand a lot of resources, requiring a long term fire management system, he said.

In India’s state of Maharashtra, where monocropping of cotton and sugarcane have left farmers vulnerable to climate change, a multi-jurisdictional and multi-sectoral approach is proving effective, said Arjuna Srinidhi, associate thematic lead of climate change adaptation at the Watershed Organization Trust.

More than 80 percent of the state consists of rainfed drylands, where drought frequency has increased sevenfold over the past 50 years, Srinidhi said. Flooding is also a problem and due to erratic weather, adding to the vulnerability of farmers. Over 40 percent of the land is degraded, and groundwater levels are falling rapidly by 1 to 2 meters every year. More than three quarters of the farmers are smallholders with less than 2 hectares of land, so their adaptive capacities are limited, he said.

Mainstreaming ecosystem-based adaptation strategies into government policies and programs is key, but we also learned that watershed development was vital.

“This collaborative process resulted in an evidence-based and demand-driven roadmap for upscaling,” Srinidhi said. “There were several lessons that we learned over the past couple of years, the unanimous acceptance of a roadmap from diverse stakeholders — generating a buy-in from early stages of the project was crucial.”

Serah Kiragu-Wissler, a research associate at TMG Think Tank for Sustainability, observed that capacity-building and extension services are essential. Farmers she worked with said they need ongoing support for adaptation efforts. Land tenure rights are also critical for soil protection, Kiragu-Wissler said, citing examples from Burkina Faso and Kenya.

“Farmers cannot develop much interest in protecting soils if they have no security to the tenure to the land that they are working on,” she said. “They clear their land this season they plant and next season they are not actually there. So, what will motivate them to carry loads of manure from the village to the fields if they cannot be assured that it will be there for you know, two, three, four seasons?”

By implementing a community-led institution for managing how land is used, guidelines were introduced which helped secure access to land for women and youth. Now recognized by the local government, this approach is under consideration by other jurisdictions, she said.

Photo by Maxim Hopman on Unsplash
Photo by Maxim Hopman on Unsplash

Finding finance

Ensuring adequate financing for ecosystem-based adaptation projects is also a challenge, particularly due to its innovative aspects and the fact that so many proposals are unproven.

“Banks, investors and insurance need to make better decisions by assessing the impacts and dependencies on nature and materiality around climate risks,” said Namita Vikas, managing director of auctusESG, a Mumbai-based financial advisory firm.  “By deploying capital goods, and surveys, given the effectiveness of such solutions. Adaptation, finance is about going beyond business as usual and incorporating the possible effects of climate change into the design of an activity.”

Andreas Reumann, who works for the GCF, which was established under U.N. climate talks to help poor countries pursue clean growth and adapt to global warming, is a specialist in designing monitoring systems that measure for outcomes.

The fund conducted a global evidence review on adaptation and forest activities with partners, which helped reveal gaps in understanding what works in a specific context.

From there, a two-dimensional matrix was created, which illustrated an imbalance regarding the geographical distribution of information. It also highlighted the question of enabling environments – and how to engage the policy arena, which is a subject that has not yet been researched, Reumann said.

“We as evaluators are thinking about and addressing these issues,” he added. “It requires more knowledge sharing, stronger evidence, and more collaboration on the ground to truly understand what matters.”

Creating data sets has proven to be effective, said Nitin Pandit, director of the Ashoka Trust for Research in Ecology and Environment. By identifying 13 million hectares of land, with 100 million households, just outside the protected areas in peninsular India, and working with partners, accumulated data are supplied to financiers.

“So, they know that there is an upside in this because there is a scale that we are already planning in from day one,” Pandit said, sharing an image of large-scale elephants, which are made by artisans from lantana wood, an invasive species. Sold at a high price, the elephants were displayed outside Queen Elizabeth’s Buckingham Palace in London.

“The type of value addition that we can do by using the resources available must add an incentive for people to actually be engaged in adaptation, and therefore demand the kind of finance that is needed to support that kind of work,” he said.

For adaptation initiatives to be effective, it is vital to build dialogue processes and co-generate of the evidence base with government ministries, said Jessica Troni, senior programme officer responsible for the U.N. Environment Programme – Global Environment Facility Climate Change Adaptation portfolio. Budgets and systems thinking must be incorporated to determine how project targets can be mainstreamed into national development plans.

“Mainstreaming has to mean that every single chapter in your national development plan is geared towards building resilience to adaptation – you can then create budgets support for mechanisms that are able to absorb larger investment flows,” Troni said.

Promises to increase the coffers for adaptation ambitions were made at COP26 in an effort catch up with a shortfall in the $100 billion a year by 2020 pledged at COP17 amid efforts to avert, minimize and address loss and damage already occurring from climate change.

“The beautiful thing is that it’s extraordinarily hard to do land-based mitigation without, at the same time, boosting that land’s ability to adapt to climate change, its biodiversity or its ability to provide a range of nutritious foods and other products,” Worms said.

“The solution is thus not rocket science, but something much harder: the ability of our institutional systems to work across silos to jointly manage this fragile planet of ours.”

Scientists are Reproducing Coral in Labs to Save Them. This is How it Works

Soft corals, algae, fish ( a doctorfish and butterflyfish), and sponges in a highly diverse reef scene. Photo by NOAA on Unsplash.
Soft corals, algae, fish ( a doctorfish and butterflyfish), and sponges in a highly diverse reef scene. Photo by NOAA on Unsplash.

By Jenny Mallon, PhD Candidate in Coral Reef Biogeochemistry, University of Glasgow, World Economic Forum published in collaboration with The Conversation (Public License).

  • Coral reefs are important natural ecosystems but are at risk from a variety of factors, including climate change.
  • Marine biologists are helping corals to reproduce in restoration projects.
  • Understanding successful reproduction could be the key to coral reefs’ survival.

Coral reefs host a quarter of all sea species, but climate change, overfishing, and pollution could drive these ecosystems to extinction within a matter of decades.

Marine biologists have been racing to restore degraded reefs by collecting corals from the wild and breaking them into fragments. This encourages them to grow fast and quickly produces hundreds of smaller corals which can be raised in nurseries and eventually transplanted back onto the reef.

But if each fragment is an identical copy with one common parent, any resulting colony is likely to be genetically identical to the rest of the population. This matters – having a diverse range of genetically conferred traits can help insure reefs against disease and a rapidly changing environment.

So what if scientists could use sexual reproduction in coral restoration projects? In the wild, the stony coral species that compose the bulk of the world’s tropical reefs cast their sperm and eggs into the water column to reproduce. Corals often synchronise these mass spawning events with full moons, when tides are exceptionally high. This ensures powerful water currents disperse the eggs far and wide, so that they’re fertilised by sperm of distant colonies.

Corals often broadcast reproductive material during the full moon, to take advantage of powerful water currents. Image: Jenny Mallon, Author provided.
Corals often broadcast reproductive material during the full moon, to take advantage of powerful water currents. Image: Jenny Mallon, Author provided.

Sexually produced offspring have a unique combination of genes from distinct parents, and this helps keep coral populations genetically diverse. Reefs restored with corals created by sexual reproduction are likely to be more resilient, though managing this process hasn’t been easy for scientists to do. But by working on one project in Mexico, I saw what is possible, and learned how to do it myself.

Coral Sex in the Lab

Coral reefs are so enormous they’re visible from space. But watching them spawn is surprisingly tricky. They only do it on a handful of nights each year and the exact date and time is determined by environmental factors that scientists are still working to fully understand.

Climate change is causing reefs with known spawning patterns to shift their timing too, making these events less frequent and predictable. This makes it difficult for different colonies to synchronise spawning, reducing their chances of successful fertilisation in the wild.

The CORALIUM Laboratory of the National Autonomous University of Mexico is part of a Caribbean-wide network of dedicated coral spawning experts. Scientists here collect coral sperm and eggs from multiple Caribbean reefs in order to fertilise them in the lab.

The team wait for the full moon to signal when corals are likely to spawn. Coral sperm and eggs are collected with floating nets and plastic containers, and divers take extreme care to avoid damaging the reef. The millions of sperm and eggs collected are rushed back to the lab where they’re cleaned and monitored all night as they undergo assisted fertilisation to begin life as free swimming larvae. These larvae are very sensitive to water quality, temperature and pathogens, so they need constant care.

Eventually, the larvae settle on hard surfaces where they change into polyps – the initial building blocks of a coral colony. In the ocean, these surfaces are often dead coral skeletons. In the lab, they are seeding units – 3-D shapes designed by scientists at the conservation organisation SECORE to resemble coral rubble that can float on ocean currents before resting on reefs.

Seeding units mimic coral rubble that floats on ocean currents. Image: SECORE International/Amanda Baye, Author provided.
Seeding units mimic coral rubble that floats on ocean currents. Image: SECORE International/Amanda Baye, Author provided.

Each juvenile produced this way carries a unique mix of genes which they will pass on to a new generation of corals. The resulting population has a stronger gene pool that can help it withstand new diseases and other threats. This long-term strategy also ensures sexual reproduction can continue on restored reefs, which would not be possible for a population composed of identical clones.

Restoring Caribbean Reefs

The Caribbean may have lost as much as 80% of its coral cover since the mid-1970s. The colonies that remain are now relatively isolated, reducing the chances of them being able to crossbreed. But in the controlled conditions of the lab, fertilisation rates of over 80% are common and larval survival is high. That means thousands of juvenile corals are reared until they’re ready for the reef after just a few weeks of incubation.

But with late night dives by experts, specialised materials for collecting spawn and a lab where fertilisation is carefully controlled, this work is often too expensive for smaller restoration projects. So scientists here have developed low-cost methods for lab spawning and are training teams from across the Caribbean to do it.

I took their course in 2016, and one year later, found myself setting up a new spawning site in Akumal, one hour south of the CORALIUM lab near Cancun. Coral spawning had never been observed here, but I trained volunteers from a local dive centre on how to spot the signs. On our fifth consecutive night dive, we saw the synchronised spawning of multiple colonies of Elkorn corals.

We set up a hotel room as a temporary lab with sterilised plastic larvae tanks and filtered seawater and produced thousands of coral babies for restoration sites. In 2018, we built a beachside coral spawning laboratory on a shoestring budget. Positioned under a tree, the breeze block structure has mosquito netting walls that allow the cool sea breeze to keep the tanks at a constant 28-29°C.

Scientists are using laboratories for coral spawning, to ensure survival. Image: Jenny Mallon, Author provided.
Scientists are using laboratories for coral spawning, to ensure survival. Image: Jenny Mallon, Author provided.

The lab was just about up and running in time for that year’s lunar eclipse. We hadn’t anticipated a mass spawn of so many colonies, so the lab inauguration was a chaos of colour coded collection cups from different sites and parent colonies.

Running a coral spawning site has been the most rewarding experience of my career so far. It is everything that research should be: cutting edge, dynamic and challenging. It’s what I signed up for when I became a marine scientist.

Sixth Mass Extinction is Human-Caused and Accelerating

The ongoing sixth mass species extinction is the result of the destruction of component populations leading to eventual extirpation of entire species. Populations and species extinctions have severe implications for society through the degradation of ecosystem services.

Vertebrates on the brink as indicators of biological annihilation and the sixth mass extinction
Vertebrates on the brink as indicators of biological annihilation and the sixth mass extinction

Research Article

Vertebrates on the brink as indicators of biological annihilation and the sixth mass extinction

Gerardo Ceballos, Paul R. Ehrlich, and Peter H. Raven, PNAS first published June 1, 2020. Contributed by Gerardo Ceballos, March 22, 2020 (sent for review December 26, 2019; reviewed by Thomas E. Lovejoy and Jorge L. Soberon).

The writers assess the extinction crisis from a different perspective. They examine 29,400 species of terrestrial vertebrates, and determine which are on the brink of extinction because they have fewer than 1,000 individuals. There are 515 species on the brink (1.7% of the evaluated vertebrates). Around 94% of the populations of 77 mammal and bird species on the brink have been lost in the last century. Assuming all species on the brink have similar trends, more than 237,000 populations of those species have vanished since 1900. They conclude the human-caused sixth mass extinction is likely accelerating for several reasons. First, many of the species that have been driven to the brink will likely become extinct soon. Second, the distribution of those species highly coincides with hundreds of other endangered species, surviving in regions with high human impacts, suggesting ongoing regional biodiversity collapses. Third, close ecological interactions of species on the brink tend to move other species toward annihilation when they disappear—extinction breeds extinctions. Finally, human pressures on the biosphere are growing rapidly, and a recent example is the current coronavirus disease 2019 (Covid-19) pandemic, linked to wildlife trade. Their results reemphasize the extreme urgency of taking much-expanded worldwide actions to save wild species and humanity’s crucial life-support systems from this existential threat.

Terrestrial vertebrates on the brink (i.e., with 1,000 or fewer individuals) include species such as (A) Sumatran rhino (Dicerorhinus sumatrensis; image credit: Rhett A. Butler [photographer]), (B) Clarion island wren (Troglodytes tanneri; image credit: Claudio Contreras Koob [photographer]), (C) Española Giant Tortoise (Chelonoidis hoodensis; image credit: G.C.), and (D) Harlequin frog (Atelopus varius; the population size of the species is unknown but it is estimated at less than 1,000; image credit: G.C.).
Terrestrial vertebrates on the brink (i.e., with 1,000 or fewer individuals) include species such as (A) Sumatran rhino (Dicerorhinus sumatrensis; image credit: Rhett A. Butler [photographer]), (B) Clarion island wren (Troglodytes tanneri; image credit: Claudio Contreras Koob [photographer]), (C) Española Giant Tortoise (Chelonoidis hoodensis; image credit: G.C.), and (D) Harlequin frog (Atelopus varius; the population size of the species is unknown but it is estimated at less than 1,000; image credit: G.C.).

(CC BY-NC-ND 4.0)