
Biomass electricity generation, a heavily subsidized form of “green” energy that relies primarily on the burning of wood, is more polluting and worse for the climate than coal, according to a new analysis of 88 pollution permits for biomass power plants in 25 states.
Trees, Trash, and Toxics: How Biomass Energy Has Become the New Coal, released this week and delivered to the U.S. Environmental Protection Agency (EPA) by the Partnership for Policy Integrity (PFPI), concludes that biomass power plants across the country are permitted to emit more pollution than comparable coal plants or commercial waste incinerators, even as they are subsidized by state and federal renewable energy dollars. It contains detailed emissions and fuel specifications for a number of facilities, including plants in California, Connecticut, Florida, Georgia, Hawaii, Kentucky, Maine, Massachusetts, New Hampshire, New York, Oregon, Pennsylvania, South Carolina, Texas, Virginia and Washington.
“The biomass power industry portrays their facilities as ‘clean,’" said Mary Booth, director of PFPI and author of the report. “But we found that even the newest biomass plants are allowed to pollute more than modern coal- and gas-fired plants, and that pollution from bioenergy is increasingly unregulated.”
The report found that biomass power is given special treatment and held to lax pollution control standards, compared to fossil-fueled power plants.
Biomass plants are dirty because they are markedly inefficient. The report found that per megawatt-hour, a biomass power plant employing “best available control technology” emits more nitrogen oxides, volatile organic compounds, particulate matter and carbon monoxide than a modern coal plant of the same size.
Almost half the facilities analyzed, however, avoided using BACT by claiming to be “minor” sources of pollution that skim under the triggering threshold for stricter pollution controls. Minor source permits are issued by the states and contain none of the protective measures required under federal air pollution permitting.
"The American Lung Association has opposed granting renewable energy subsidies for biomass combustion precisely because it is so polluting,” said Jeff Seyler, president and CEO of the American Lung Association of the Northeast. “Why we are using taxpayer dollars to subsidize power plants that are more polluting than coal?”
The analysis also found that although wood-burning power plants are often promoted as being good for the climate and carbon neutral, the low efficiency of plants means that they emit almost 50 percent more CO2 than coal per unit of energy produced. Current science shows that while emissions of CO2 from biomass burning can theoretically be offset over time by forest regrowth and other means, such offsets typically take several decades to fully compensate for the CO2 emitted during plant operation. None of the permits analyzed in the report required proof that carbon emissions would be offset.
EPA rules also allow biomass plants to emit more hazardous air pollutants than both coal plants and industrial waste incinerators, including heavy metals and dioxins. Even with these weak rules, most biomass plants avoid restrictions on the amount of toxic air pollution they can emit by claiming to be minor sources, and permits usually require little testing for proof of actual emissions. When regulated as a minor source, a facility is not required to meet any limitations on emissions of hazardous air pollutants.
The potential for biomass power plants to emit heavy metals and other air toxics is increasing, because new EPA rules allow burning more demolition debris and other contaminated wastes in biomass power plants, including, EPA says, materials that are as contaminated as coal. A majority of the facilities reviewed in the report allowed burning demolition debris and other waste wood.
“Lax regulations that allow contaminated wastes to be burned as biomass mean that communities need to protect themselves,” said Mary Booth. “They can’t count on the air permitting process to ensure that bioenergy pollution is minimized.”
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At first glance, you wouldn't think avocados and almonds could harm bees; but a closer look at how these popular crops are produced reveals their potentially detrimental effect on pollinators.
Migratory beekeeping involves trucking millions of bees across the U.S. to pollinate different crops, including avocados and almonds. Timothy Paule II / Pexels / CC0
<p>According to <a href="https://www.fromthegrapevine.com/israeli-kitchen/beekeeping-how-to-keep-bees" target="_blank">From the Grapevine</a>, American avocados also fully depend on bees' pollination to produce fruit, so farmers have turned to migratory beekeeping as well to fill the void left by wild populations.</p><p>U.S. farmers have become reliant upon the practice, but migratory beekeeping has been called exploitative and harmful to bees. <a href="https://www.cnn.com/2019/05/10/health/avocado-almond-vegan-partner/index.html" target="_blank">CNN</a> reported that commercial beekeeping may injure or kill bees and that transporting them to pollinate crops appears to negatively affect their health and lifespan. Because the honeybees are forced to gather pollen and nectar from a single, monoculture crop — the one they've been brought in to pollinate — they are deprived of their normal diet, which is more diverse and nourishing as it's comprised of a variety of pollens and nectars, Scientific American reported.</p><p>Scientific American added how getting shuttled from crop to crop and field to field across the country boomerangs the bees between feast and famine, especially once the blooms they were brought in to fertilize end.</p><p>Plus, the artificial mass influx of bees guarantees spreading viruses, mites and fungi between the insects as they collide in midair and crawl over each other in their hives, Scientific American reported. According to CNN, some researchers argue that this explains why so many bees die each winter, and even why entire hives suddenly die off in a phenomenon called colony collapse disorder.</p>Avocado and almond crops depend on bees for proper pollination. FRANK MERIÑO / Pexels / CC0
<p>Salazar and other Columbian beekeepers described "scooping up piles of dead bees" year after year since the avocado and citrus booms began, according to Phys.org. Many have opted to salvage what partial colonies survive and move away from agricultural areas.</p><p>The future of pollinators and the crops they help create is uncertain. According to the United Nations, nearly half of insect pollinators, particularly bees and butterflies, risk global extinction, Phys.org reported. Their decline already has cascading consequences for the economy and beyond. Roughly 1.4 billion jobs and three-quarters of all crops around the world depend on bees and other pollinators for free fertilization services worth billions of dollars, Phys.org noted. Losing wild and native bees could <a href="https://www.ecowatch.com/wild-bees-crop-shortage-2646849232.html" target="_self">trigger food security issues</a>.</p><p>Salazar, the beekeeper, warned Phys.org, "The bee is a bioindicator. If bees are dying, what other insects beneficial to the environment... are dying?"</p>EcoWatch Daily Newsletter
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