Amid the desert surroundings of this year’s UNFCCC Conference of the Parties (COP27) in Egypt, Woodwell scientists called out the urgent climate crisis in the Arctic, which is impacting both local communities and the entire planet. 82% of climate models in use by the Intergovernmental Panel on Climate Change (IPCC) do not represent carbon emissions from thawing permafrost. As a< result, the world’s policymakers are underestimating how aggressively we need to reduce fossil fuel emissions to avoid the worst consequences of climate change.
At COP27, a team from Permafrost Pathways was pushing to highlight permafrost thaw within the greater discourse and amplify the voices of Northern communities who are being most impacted by rapid Arctic warming. Although action at this year’s conference was slow in getting off the ground, cover decision, and other outcomes built on this momentum with new declarations to step up mitigation, as well as pledges for loss and damage funding.
Boston is losing its snow wicked fast
New England is warming more quickly than almost anywhere else on Earth.
My first winter in Boston, the last patches of snow on my street didn’t melt until late June. It was 2015, the year the city broke its all-time record for annual snowfall: 110.3 inches, more than twice the average. Public transportation morphed into a hellscape. Schools racked up so many snow days that some had to extend the academic year. Dogs began to summit snowbanks to break out of fenced-in yards; a homegrown Yeti appeared to help locals shovel. The city eventually ran out of places to dump the piles of snow—prompting then-Mayor Marty Walsh to consider throwing it all into the harbor like so much British tea.
Continue reading on The Atlantic.
TIL about winter storms
Winters are warming faster than any other season here in the U.S. So why are some winter storms getting even more intense? Today, we’re going to explore the connections between climate change and extreme winter weather. For this episode, we sat down with atmospheric science expert Dr. Jennifer Francis of the Woodwell Climate Research Center.
Read more and listen on TILclimate.
As the planet warms, drought is an increasing threat in many regions. Research led by Woodwell Research Assistant Isabelle Runde, modeled the frequency of drought across the globe, analyzing drought changes in forest, food, and energy systems as temperatures surpass 2, 3, and 4 degrees Celsius.
Models show that unlike in a stable climate, unreliable water resources and increasing temperatures make drought more likely in many places. For every increase of 0.5 degrees C, an additional 619 million people could become exposed to extreme drought 1 in every 4 years. This is in addition to the 1.7 billion people (nearly a quarter of today’s global population) who are already exposed to these conditions in a world that has warmed by a little more than 1 degree C.
2 Degrees of Warming Risks Damaging our Best Forest Carbon Sinks
Tropical forests are one of the planet’s key natural climate solutions— able to prevent 1 degree of warming through both carbon sequestration and regional cooling effects. Deforestation, fragmentation and degradation from things like fire, and disease threaten to turn these forests from a vital sink to a source of emissions.
In recent years, the Amazon has been a net carbon source due to increased extreme drought and deforestation, leaving the Congo rainforest as the world’s last remaining stable tropical forest carbon sink.
As warming surpasses 2 degrees, the annual likelihood of drought in the Congo rainforest begins increasing faster than in the Amazon. Drought can make a forest more susceptible to further degradation, such as fire or disease, and reduces carbon sink capacity by stressing or killing trees and placing the ecosystem under stress.
Productivity is Threatened in the Breadbaskets of Mediterranean, Mexico, China
Global crop production is highly concentrated in key breadbasket regions— nearly 72% of the world’s maize, wheat, rice, and soy are produced in just 5 countries. Extreme drought can reduce the productivity levels of these staple crops, among others, potentially triggering widespread food insecurity, hunger and economic disruption.
By 2 degrees of warming, the probability of drought in the breadbasket regions of both China and the United States will be greater than 50% — meaning an extreme drought roughly every other year.
Disruption will be much higher in countries where jobs in agriculture comprise a large segment of the economy. In Mexico, one of the world’s top 10 producers of maize, 12% of the workforce is in agriculture and at 1 degree, the country already has among the greatest areas of cropland exposed to drought. 90% probabilities—indicating near-annual drought—begin to emerge in some parts of the country at 2 degrees of warming.This kind of recurrent extreme drought will stress water resources for agriculture.
The Mediterranean also is a drought hotspot. Drought probability in Mediterranean croplands will increase rapidly between 2 and 3 degrees of warming, rising from just 10% to over 50% of cropland affected by drought in 3 out of 4 years.
Drying Rivers Will Plunge Hydro-dependent Countries into Energy-Shortages
Hydroelectricity supplies a sixth of global energy demand, and is a low-cost, low-emission alternative to fossil fuels. The overwhelming majority of new hydropower plants since 1990 have been constructed in fast-growing, developing nations.
High dependence on hydropower makes countries like Brazil and China vulnerable to energy disruption during periods of drought. Brazil draws nearly two thirds of its energy from hydroelectric resources. During a three year drought between 2012 and 2015 in Brazil, hydroelectric generation declined by 20% each year. If warming exceeds 3 degrees C, more than half of Brazil’s hydroelectric capacity will experience a likelihood of annual drought greater than 50%.
Extreme drought can also be counterproductive to reducing carbon emissions. During years of drought, expensive fossil fuel based energy is often brought in to fill demands. In addition, droughts often coincide with extreme heat events, when electricity demand peaks to run air conditioners. Beyond 3 degrees of warming, more than a third of the planet’s hydroelectric capacity will likely be exposed to extreme drought every other year.
Projections of a Dryer World
Current international climate goals aim to limit warming to between 1.5 and 2 degrees C, but without urgent intervention, we are on track to push past that limit to at least 2.5 degrees C. Projections past 2 degrees of warming show a future where extreme drought is common, exposing already-vulnerable people, places, and economies to greater water shortages, while making it even harder to curb emissions. In order to guard water resources and the systems that depend on them, emissions need to be cut rapidly. And places already feeling the impacts of warming will need to brace to adapt to a hotter, dryer version of the world.
New abnormal: Climate disaster damage ‘down’ to $268 billion
This past year has seen a horrific flood that submerged one-third of Pakistan, one of the three costliest U.S. hurricanes on record, devastating droughts in Europe and China, a drought-triggered famine in Africa and deadly heat waves all over.
Yet this wasn’t climate change at its worst.
Read more on Associated Press News.
A new alliance for forest protection comes amid trends of mounting deforestation.
This year, at COP27, Brazil, the Democratic Republic of Congo (DRC), and Indonesia signed a Forest Nations Alliance, declaring their intent to work together in achieving global deforestation goals. Together, these three countries hold over half of the world’s tropical forests. These forests are vital carbon sinks, the loss of which could result in an additional 1 degree of warming. But across the globe, deforestation has been trending upwards, placing mitigation goals at risk. The question is whether this new alliance can help move the needle in the right direction.
The new alliance comes at a crucial time for forests. In 2021, leaders of more than 100 nations at the COP26 climate conference in Glasgow declared a renewed commitment to halting forest loss and degradation by 2030. The pledge was accompanied by a 12 billion dollar pledge to address wildfires, and support restoration and Indigenous rights. However, analyses one year later declared the pledge “off to a slow start” and gave the world a D- grade on reversing deforestation trends.
In 2021, Brazil saw a 72% increase in the rate of deforestation compared to the prior three years. Much of this was associated with illegal occupation of public lands or unpermitted deforestation on private lands. Early numbers for 2022 show that trend continued with an estimated 10,057 square kilometers of forest lost in the Amazon between January 1 and December 2.
In the DRC, forest loss is driven mostly by low-yield, smallholder, subsistence agriculture. Most of the DRC’s rural population depends on natural resources for their livelihoods and are often forced to clear forests to feed their families.
Indonesia, in contrast, has seen record low deforestation rates in recent years, reducing forest loss for five years in a row. However, experts say a rebound is still possible if government policies don’t reinforce this success.
Despite these differing rates and drivers of deforestation, these influential tropical forest nations have united around a common goal. In effect, the alliance “unionizes” forest countries, making them a more formidable negotiating entity than any single country would be on their own.
“What they’re saying is ‘we’re more powerful together,’” says Woodwell Tropics Program director, Dr. Michael Coe. “Somebody has to be in the driver’s seat making changes and this way they are the ones doing the driving, rather than being driven.”
The agreement states that the nations will be pushing for payments in exchange for their work in reducing deforestation, and they will negotiate for a new “sustainable funding mechanism” to help developing countries preserve biodiversity.
“Negotiating as a block, these three countries are now well positioned to maximize the financing they desperately need to implement sustainable development and conservation objectives while ensuring the flow of capital remains stable over the long term,” says Carbon Program director Dr. Wayne Walker.
Looking ahead to 2023, there is optimism that Brazil will strengthen its forest policies as newly elected president Luiz Inacio “Lula” da Silva has pledged to end deforestation in the Amazon, stating, “There is no climate security for the world without a protected Amazon.”
If successful in advancing their goals, the alliance could attract other tropical forest nations to lend their support. Though we are currently not on track to halt deforestation by 2030, the creation of this alliance is a step in the right direction.
Millions of acres of rangelands managed by the U. S. Bureau of Land Management are not meeting land health standards, according to a recent report from watchdog organization Public Employees for Environmental Responsibility. Range degradation is also happening on U.S. Forest Service and privately held lands. Healthy rangelands are vital to the economic and public health of the communities that depend on them, which includes ranchers, Indigenous nations, and recreationists. Failing rangelands undermine these groups, lead to loss of habitat, and result in landscape degradation, and they also minimize our ability to mitigate climate change through carbon sequestration. Taking policy action to ensure the longevity of rangelands has the potential to increase climate mitigation potential and improve the health of U.S. ecosystems.
What is healthy rangeland?
Covering more than 31 percent of the U.S., rangelands are any wilderness or rural open space grazed by domestic or wild herbivores, including grassland, shrubland, and pasture. Rangelands provide a wide array of ecosystem services, including food for livestock, habitat for wild species, and climate regulation through the uptake of carbon dioxide (CO2) by growing plants and the transfer of this sequestered carbon into the soil (as soil organic carbon). Globally, rangelands store 20 percent of the world’s soil organic carbon and U.S. rangelands may have the capacity to offset 2.5 – 3 percent of U.S. CO2 emissions from fossil fuels, but only if the rangelands are considered in “full health”.
Improving monitoring to foster healthy rangelands
The capacity for rangelands to sequester carbon is increasingly threatened by drought and overgrazing and there is an urgent need for improved land use planning to tackle these issues. However, the lack of an integrated monitoring system makes it difficult to know what changes to land management are needed on the individual ranch scale.
An important first step, then, to fostering healthy rangelands is establishing an open-access region-wide range monitoring platform that ranchers can use to verify and track changes in rangeland ecosystem condition and carbon storage across entire land units. Large-scale monitoring for these indicators will make it clearer where land is being effectively managed, and where it is not.
Dr. Jennifer Watts focuses on how climate change and human disturbance are affecting vegetation, soils, and the carbon cycle. She and her colleagues are currently working to develop a monitoring platform to provide stakeholders access to land health information.
“Having free, easy access to long-term information about lands will empower us to become fully aware of how our land use is impacting the health and future of rangeland ecosystems,” Dr. Watts explains. “This gives us the ability to invest in alternative management approaches that provide a more sustainable future for our lands while protecting our communities and ecosystems in the face of climate change.”
Building a system of rewards and incentives
Reward systems can then be established across different scales to incentivize land use that improves ecosystem services. Monitoring platforms can be used in conjunction with clear land management directives to ensure rangelands are managed in a way conducive to ecosystem health.
Overgrazing is one of the biggest drivers of rangeland carbon loss and land degradation. It not only undermines the carbon storage potential of rangelands but also compromises other ecosystem services and limits future grazing capacity for livestock and wildlife. Consequently, it is in the best interest of everyone–ranchers, conservationists, Indigenous groups, and recreationists–to ensure that grazing on rangelands is managed in a way that increases vegetation cover, diversity, and rooting depth, while minimizing bare ground. Grazing practices can be addressed through process-oriented approaches.
Practicing management intensive grazing could help limit overgrazing. This adaptive technique involves concentrating grazing animals in one place for a very short period of time and then moving them to a different location. This ensures that the ecosystem has a chance to recover and regrow following a concentrated period of grazing. Ranchers will need technical assistance to develop grazing and management plans. Given that this is a practice under the Environmental Qualities Incentive Program (EQIP) it is likely to receive a boost in funding from the 2022 Inflation Reduction Act. Building more programs, at the federal, state, and county level, that reward ranchers for shifting grazing techniques to those that support the sustainability of ecosystem services and provide equipment needed to support fencing and water distribution could be a way to incentivize more effective land management.
Manipulating grazing fees to more accurately represent the costs associated with maintaining the integrity of rangelands is another option for fostering healthier rangelands given the current low fees and stagnant pricing of grazing fees. Furthermore, revenue generated from increasing grazing fees on public lands could be used to support a monitoring system for all U.S. rangelands.
Most stakeholders agree that better rangeland monitoring, soil health, and payment for land improvements are important, but a big question is how to actually pay for these services across multiple levels of governance. Exploring how to leverage different options for funding, then, will be the necessary next step in supporting thriving rangeland ecosystems and reaping the potential climate benefits.