City Compost Programs Boost Food Security and Social Justice
By Kristen DeAngelis, Gwynne Mhuireach and Sue Ishaq
Almost overnight, the COVID-19 pandemic has transformed many Americans' relationships with food. To relieve some of the stress associated with shopping safely for groceries and ensure food security, many people are once again planting "victory gardens." This tradition hearkens back to previous generations who cultivated home gardens during both World Wars.
Interest was high even before the pandemic. In 2014 the National Gardening Association reported that 42 million U.S. households – about 1 out of every 3 – grew some kind of food, either at home or in community gardens.
But home gardening isn't always easy. Poor soil quality will hamper vegetable growth and food production. And many gardeners, especially in lower-income communities, don't have access to resources that can improve the soil.
We are scholars who have analyzed the power of microbes in settings that include forest soils and permafrost, the built environment, and digestive systems and agricultural soils. In our view, the time has come for major public investments in a well-known gardening resource: compost.
Microbes make compost by breaking down organic matter, such as food scraps. Compost improves soil health so dramatically it's often called "black gold." Large-scale municipal composting is a public resource that can reduce food waste, cut greenhouse gas emissions and promote better stewardship of our most valuable natural resource: soil.
How Compost Feeds Soils
Healthy soils are living mixtures of minerals, microbes, organic matter, water and air. Unhealthy soils may contain fewer microbes or less organic material. This makes them less active and less helpful for plants. Poor soils have trouble holding water, and are unable to decompose organic material into usable building blocks for new growth.
Making degraded soils healthier requires feeding the microbes. They need new organic matter – plant or animal tissues – that they can break down and recycle.
In healthy soil, some of that food comes from growing plants that fix carbon from sunlight and pump almost half of it, in the form of sugars, into the soil. In exchange, the microbes provide other nutrients that plants can't acquire on their own.
Soil microbes also feed on old organic matter, like leaf litter and dead roots. And new biochemical analyses suggest that when these microbes die, they become part of soil organic matter themselves.
To make good compost, you mix green plant waste, like vegetable peels, garden leaf litter or straw, with brown organic matter like soil or manure. Then, over weeks to months, microbes turn the mix into compost, which looks just like soil.
This process produces heat as the microbes break chemical bonds in the plant matter, releasing energy. Compost piles can reach internal temperatures up to 170 degrees F. The heat kills potential microbial pathogens that can ride along with manure inputs.
When gardeners add compost to soils, the organic matter in the compost acts like a sponge for water. It also is a reservoir for nitrogen, phosphorus and other micronutrients that plants need to grow.
Access to Compost Is an Equity Issue
If compost is such a great resource, why don't more people make their own? In many ways, healthy soil is a luxury. For starters, it takes time to set up a compost pile, followed by continued maintenance – adding browns and greens at the right intervals, watering the pile and turning it over weekly in summer or monthly in winter.
Composting also takes tools and construction materials that not all aspiring gardeners can afford. It requires access to space, and a friendly regulatory environment that allows residents to create compost piles, which can produce odors and attract pests if they are not managed properly.
Factors like these are increasing interest in municipal composting programs, in which a community collects and processes residents' organic materials. These programs typically accept food and yard waste from restaurants, schools, businesses and local residents, and create a large-scale, professionally run composting facility.
Municipal composting saves money for communities by diverting food waste from landfills. It also promotes sustainability by reducing emissions of methane, a powerful greenhouse gas produced in landfills when waste breaks down in the absence of oxygen. And combining lots of different waste sources improves the breakdown of organic materials and generates more nutritious compost.
Many municipal programs allot participants a certain volume of compost in return for the waste they provide. And some offer pickup and delivery.
Growing Compost Programs
We encourage people with the necessary time and resources to try home composting. However, creating and supporting municipal composting is necessary to meaningfully reduce greenhouse gas emissions from food waste and increase access to healthy soil.
Among U.S. cities, leaders in promoting city-scale composting services include San Francisco, Seattle, and smaller cities like Burlington, Vermont. These programs rely on local ordinances that either offer incentives or require restaurants and other large food waste sources to compost food waste instead of sending it to landfills.
Municipal composting needs consumer support to attract and retain funding and other resources. Demands for land, especially in urban settings, can spur city governments to sell underfunded or underutilized community spaces for commercial use – especially if local neighborhoods lack social capital to advocate for themselves.
Promoting community-based food production and recycling waste via composting provides many benefits. It creates jobs, expands access to healthy fruits and vegetables, improves the local environment – especially the soil – and helps mitigate climate change. Best of all, investing in local agriculture helps boost the local economy, especially for those who need it most: people seeking better access to safe and nutritious food.
Kristen DeAngelis is an Associate Professor of Microbiology, University of Massachusetts Amherst.
Gwynne Mhuireach is a Post Doctoral Research Fellow, Biology and the Built Environment, University of Oregon.
Sue Ishaq is an Assistant Professor of Animal and Veterinary Sciences, University of Maine
Kristen DeAngelis receives funding from the DOE and NSF to study soil health, microbial communities and climate change. She is also affiliated with the Massachusetts Healthy Soils Action Plan Working Group as a volunteer and part of the 30-member Work Group of soil and wetland scientists, conservationists, farmers, foresters, and researchers.
Gwynne Mhuireach receives funding from USDA NIFA to explore soil microbial communities in urban gardens.
Sue Ishaq receives funding from USDA NIFA for research on soil microbial communities in agriculture.
Reposted with permission from The Conversation.
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Researchers at UC-Riverside are investigating how barley, a key ingredient in beer, survives in such a wide variety of climates with hopes of learning what exactly makes it so resilient across climates.
Barley was first grown domestically in Southwest Asia about 10,000 year ago and is grown around the world, from Egypt to Minnesota.
Barley's prime growing regions have shifted northward in recent decades as global temperatures have risen due to climate change caused by human extraction and combustion of fossil fuels.
Chuck Skypeck, technical brewing projects manager for the Brewers Association located in Boulder, Colorado, told E&E climate change's effects are impacting the brewing industry.
"Certainly dynamic growing conditions, water scarcity, extreme weather events, growers' planting decisions can all affect both pricing and availability of brewers' supply of malted barley," he told E&E News.
For a deeper dive:
France moved one step closer this weekend to banning short-haul flights in an attempt to fight the climate crisis.
A bill prohibiting regional flights that could be replaced with an existing train journey of less than two and a half hours passed the country's National Assembly late on Saturday, as Reuters reported.
"We know that aviation is a contributor of carbon dioxide and that because of climate change we must reduce emissions," Industry Minister Agnes Pannier-Runacher told Europe 1 radio, according to Reuters.
The measure now has to pass the French Senate, then return to the lower house for a final vote. It would end regional flights between Paris's Orly airport and cities like Nantes and Bordeaux, The Guardian explained. It would not, however, impact connecting flights through Paris's Charles de Gaulle/Roissy airport.
The bill is part of a legislative package which aims to reduce France's emissions by 40 percent of 1990 levels by 2030, Reuters reported. It is a watered-down version of a proposal suggested by France's Citizens' Convention on Climate, BBC News explained. This group, which was formed by President Emmanuel Macron in 2019 and included 150 ordinary citizens, had put forward a ban on flights that could be replaced with an existing train journey of under four hours.
However, the journey length was lowered after protests from KLM-Air France, which had suffered heavy losses due to the coronavirus pandemic, and regions who were concerned about being left out of national transit networks, as The Guardian explained.
"We have chosen two and a half hours because four hours risks isolating landlocked territories including the greater Massif Central, which would be iniquitous," transport minister Jean-Baptiste Djebbari said, as The Guardian reported.
However, some environmental and consumer groups objected to the changes. The organization UFC-Que Choisir compared plane routes with equivalent train journeys of under four hours and found that the plane trips emitted an average of 77 times more carbon dioxide per passenger than the train journeys. At the same time, the train alternatives were cheaper and only as much as 40 minutes longer.
"[T]he government's choice actually aims to empty the measure of its substance," the group said, according to The Guardian.
The new measure also opens the French government to charges of hypocrisy. It bailed out Air France-KLM to the tune of a seven-billion euro loan last year, though it did require the airline to drop some domestic routes as a condition. Then, days before the measure passed, it more than doubled its stake in the airline, BBC News reported. However, Pannier-Runacher insisted to Europe 1 radio that it was possible to balance fighting climate change and supporting struggling businesses.
"Equally, we must support our companies and not let them fall by the wayside," she said, as Reuters reported.
This is not the first time that climate measures and aviation bailouts have coincided in the wake of the coronavirus pandemic. Austrian Airlines replaced its Vienna-Salzburg flight with additional train service after it received government money dependent on cutting greenhouse gas emissions, BBC News reported.
The number of flights worldwide declined almost 42 percent in 2020 when compared with 2019. It is expected that global aviation may not fully recover until 2024, according to Reuters.
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Four gray whales have washed up dead near San Francisco within nine days, and at least one cause of death has been attributed to a ship strike.
More whales than usual have been washing up dead since 2019, and the West Coast gray whale population continues to suffer from an unusual mortality event, defined by the National Oceanic and Atmospheric Administration (NOAA) as "a stranding that is unexpected; involves a significant die-off of any marine mammal population; and demands immediate response."
"It's alarming to respond to four dead gray whales in just over a week because it really puts into perspective the current challenges faced by this species," Dr. Pádraig Duignan, director of pathology at the Marine Mammal Center, said in a press release.
As the world's largest marine mammal hospital, the Sausalito-based center has been investigating the recent spate of deaths. The first involved a 41-foot female who washed up dead at San Francisco's Crissy Field on March 31, SFGate reported. The cause of death remains a mystery, as the whale was in good condition with a full stomach. The second, another female, washed up on April 3 at Fitzgerald Marine Reserve on Moss Beach.
"That animal's cause of death, we suspect, was ship strike," the Marine Mammal Center's Giancarlo Rulli told SFGate. "Our plan is to eventually head back out to that whale and take more samples."
The third whale washed up April 7 near Berkeley Marina, The AP reported. The center determined it was a 37-foot male in average condition, with no evidence of illness or injury.
A 41-foot female turned up the next day on Marin County's Muir Beach. She suffered bruising and hemorrhaging around the jaw and neck vertebrae, indicating a vessel strike.
Vessel strikes are one of the leading causes of death for gray whales examined by the Marine Mammal Center, along with entanglements in fishing gear and malnutrition. While the species is not endangered, the population has declined by 25 percent since last assessed in 2016, CNN reported.
West Coast gray whales travel 10,000 miles every year between Mexico and the Arctic, according to The AP. They spend the winter breeding off of Baja California, and feed along the California coast in spring and summer on their way back north. The Marine Mammal Center began noticing a problem for the migrating whales in 2019.
"Our team hasn't responded to this number of dead gray whales in such a short span since 2019 when we performed a startling 13 necropsies in the San Francisco Bay Area," Dr. Duignan said in the press release.
The 2019 deaths led NOAA to declare an unusual mortality event for West Coast gray whales. It is similar to another event that happened from 1999 to 2000, after which the whales' numbers rebounded to even higher levels. This suggests population dips and rises may not be uncommon for the species. However, it is also possible that the climate crisis is playing a role. The 2019 deaths were linked to malnutrition, and warmer waters can reduce the amount of food whales have to eat in the Arctic, giving them less energy for their migration, CNN explained. Overfishing can also play a role in depriving whales of food, the Marine Mammal Center said.
Dr. Jeff Boehm, Marine Mammal Center CEO and veterinarian, told CNN that he had observed an uptick in shipping traffic after the pandemic caused a slowdown. At the same time, the center is less able to conduct research because of COVID-19 safety precautions. And even in the best of times, only around 10 percent of dead whales wash up on shore, The AP reported.
"This many dead whales in a week is shocking, especially because these animals are the tip of the iceberg," Kristen Monsell, legal director of the Center for Biological Diversity's Oceans program, told The AP.
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About 70% of the buildings in Kalbarri were damaged and tens of thousands are without power by winds gusting over 100 miles per hour. Climate change, caused by humans' extraction and combustion of fossil fuels, is making cyclonic storms more extreme by increasing air and ocean temperatures, which effectively supercharges the storms.
"You just thought, this is it. I would have thought that when we opened the door, that there would be nothing around us except that roof," Kalbarri resident Debbie Major told the Australian Broadcasting Corporation. "We are a small town. Half of it has been flattened." Seroja devastated regions of Indonesia and Timor-Leste last week, where it triggered deadly flash floods and landslides.
#CycloneSeroja: homes & units before & after the cyclone hit #Kalbarri, 170kmh gusts causing major damage. #7NEWS https://t.co/WYFL2QOlwB— Paul Kadak (@Paul Kadak)1618186830.0
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By Rishika Pardikar
Search operations are still underway to find those declared missing following the Uttarakhand disaster on 7 February 2021.
"As of now [18 March], we have found 74 bodies and 130 people are still missing," said Swati S. Bhadauria, district magistrate in Chamoli, Uttarakhand, India. Chamoli is the district where a hanging, ice-capped rock broke off from a glacier and fell into a meltwater- and debris-formed lake below. The lake subsequently breached, leading to heavy flooding downstream.
The disaster is attributed to both development policies in the Himalayas and climate change. And as is common with climate-linked disasters, the most vulnerable sections of society suffered the most devastating consequences. Among the most vulnerable in Chamoli are its population of migrant construction workers from states across India.
Of the 204 people dead or missing, only 77 are from Uttarakhand, and "only 11 were not workers of the two dam companies," Bhadauria noted. The two dams referred to are the 13.2-megawatt Rishiganga Hydroelectric Project and the 520-megawatt Tapovan Vishnugad Hydropower Plant, which has been under construction since 2005. The flash floods in Chamoli first broke through the Rishiganga project and then, along with debris accumulated there, broke through the Tapovan Vishnugad project 5–6 kilometers downstream.
"Both local people and others from Bihar, Punjab, Haryana, Kashmir, Uttar Pradesh…from all over India work on these two [hydroelectric] projects," said Atul Sati, a Chamoli-based social activist with the Communist Party of India (Marxist-Leninist) Liberation.
Sati noted that the local community suspects the number of casualties from the Uttarakhand disaster may be higher than reported because not all the projects' migrant workers—including those from bordering countries like Nepal—have been accounted for by the construction companies and their subcontractors.
The National Thermal Power Corporation is the state-owned utility that owns the Tapovan Vishnugad project. "NTPC has given building contracts to some companies," Sati explained. "These companies have given subcontracts to other companies. What locals are saying is that there are more [than 204] who are missing. They say there were [migrant] workers from Nepal."
NTPC and the Kundan Group (the corporate owner of the Rishiganga project) have not responded to repeated requests for comment.
No Early-Warning System
"NTPC did not have a proper early-warning system," said Mritunjay Kumar, an employee with the government of the east Indian state of Bihar. Kumar's bother, Manish Kumar, was a migrant worker employed with Om Infra Ltd., an NTPC subcontractor. On the day of the disaster, Manish was working in one of the silt flushing tunnels of the Tapovan project and lost his life in the flooding.
Mritunjay Kumar noted that it "would have taken time" for the floodwater and debris to flow from the meltwater lake to the Rishiganga project and then to the Tapovan project. "Even if workers knew 5 minutes in advance," he said, "lives could have been saved."
An advance notice "would have given [Tapovan] workers at least 5–6 critical minutes," agreed Hridayesh Joshi, an environmental journalist from Uttarakhand who reported from Chamoli after the disaster. "Many people made videos; they shouted and alerted people on site. If there was a robust early-warning system, many more lives could have been saved…even if not all, at least some would have escaped."
"It is true that this was an environmental, climate change driven disaster. But NTPC had not taken any measures to save their workers from such disasters," Kumar said. "They [NTPC] hadn't even installed emergency exits for tunnel workers. The only proper exit was a road which faces the river. If NTPC had installed a few temporary iron staircases, many people could have climbed out."
Kumar noted that the Tapovan project has been under construction since before the 2013 Kedarnath disaster, in which more than 5,000 people lost their lives as rainfall-driven floods ravaged northern India. "If they [NTPC] knew that such disasters will happen, why didn't they install early-warning systems?" Kumar asked. "Scientists have been warning about climate change and [dam and road] constructions in the Himalayas from a very long time. Obviously, NTPC was aware."
This story originally appeared in Eos and is republished here as part of Covering Climate Now, a global journalism collaboration strengthening coverage of the climate story.