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By Tim Radford
Scientists have identified yet another hazard linked to the thawing permafrost: laughing gas. A series of flights over the North Slope of Alaska has detected unexpected levels of emissions of the greenhouse gas nitrous oxide from the rapidly warming soils.
Entergy Gas Plant Opponents Question Integrity of New Orleans City Council as It Gives Final Approval
By Julie Dermansky
On February 21, the New Orleans City Council unanimously voted to uphold approval of Entergy's proposed natural gas power plant, which faces a growing number of lawsuits, and passed a resolution to impose a $5 million fine on the company for its role in a paid-actors scandal.
Before the vote, in nearly three hours of often emotional testimony mostly against the plant, many contended that the $5 million fine was not a sufficient punishment. This was in light of the council's commissioned investigation, which concluded the company "knew or should have known" that a subcontractor was paying actors to support its proposed power plant at council meetings.
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2018 saw a number of studies pointing to the outsized climate impact of meat consumption. Beef has long been singled out as particularly unsustainable: Cows both release the greenhouse gas methane into the atmosphere because of their digestive processes and require a lot of land area to raise. But for those unwilling to give up the taste and texture of a steak or burger, could lab-grown meat be a climate-friendly alternative? In a first-of-its-kind study, researchers from the Oxford Martin School set out to answer that question.
By Daniel Ross
Hurricane Florence, which battered the U.S. East Coast last September, left a trail of ruin and destruction estimated to cost between $17 billion and $22 billion. Some of the damage was all too visible—smashed homes and livelihoods. But other damage was less so, like the long-term environmental impacts in North Carolina from hog waste that spilled out over large open-air lagoons saturated in the rains.
Hog waste can contain potentially dangerous pathogens, pharmaceuticals and chemicals. According to the state's Department of Environmental Quality, as of early October nearly 100 such lagoons were damaged, breached or were very close to being so, the effluent from which can seep into waterways and drinking water supplies.
By Tim Radford
As the global temperature steadily rises, it ensures that levels of one of the most potent greenhouse gases are increasing in a way new to science: the planet will have to reckon with more methane than expected.
Researchers who monitored one bog for three years in the Alaskan permafrost have identified yet another instance of what engineers call positive feedback. They found that global warming meant earlier springs and with that, earlier spring rains.
Residents, lawmakers and environmentalists from a seaside community in Los Angeles County are questioning why it took a whole week for government officials to inform them of a well blowout that sprayed natural gas and other fluids nearly 60 feet into the air for several minutes.
On Jan. 11, hotel construction workers in a populated area in Marina del Rey dug into an abandoned, 1930s-era oil well, causing an eruption of mainly methane, heavy abandonment mud and water. Video footage shows the fluids shooting high into the sky, and a worker rappelling away to avoid injury. The oil well was last sealed in 1959 and was in the process of being re-sealed before the release.
'Last Chance': Warming Could Be Limited to 1.5°C With Immediate Phaseout of Fossil Fuel Infrastructure, Researchers Say
It is still possible to limit global warming to 1.5 degrees Celsius above pre-industrial levels, a study published Tuesday in Nature Communications found, as long as we act immediately to phase out fossil fuels.
The study used a climate model to determine what would happen if, beginning at the end of 2018, all existing fossil fuel infrastructure—from industrial equipment to cars to planes to ships to power plants—was replaced with renewable alternatives at the end of its design lifetime. The researchers found there would be a 64 percent chance of limiting warming to 1.5 degrees, in line with the most ambitious goal of the Paris agreement.
By Eric Holt-Giménez
Over eight decades ago, the Dust Bowl devastated over 100,000,000 acres of agricultural land and the Great Depression threw 15 million Americans out of work. President Franklin Delano Roosevelt instituted the New Deal with sweeping national programs for work, agriculture, food, and land conservation.
By Julie Dermansky
Louisiana is ground zero for the devastating impacts of climate change. Even though the state is already feeling the costly impacts to life and property due to extreme weather and an eroding coastline linked to a warming planet, its government continues to ignore the primary cause—human use of fossil fuels.
The impacts to the region, such as worsening floods, heat waves and sea level rise, will only be intensified as the globe continues warming, warn federal scientists in the latest National Climate Assessment report.
'The Window of Opportunity for Action Is Almost Closed': UN Report Shows Record Levels of Climate-Changing Gases
The atmospheric concentrations of the three gases most responsible for climate change reached record highs in 2017, the most recent annual Greenhouse Gas Bulletin released Thursday from the UN's World Meteorological Organization (WMO) found.
The concentration of carbon dioxide in the atmosphere is now at 405.5 parts per million (ppm), or 146 percent of pre-1750 levels. The concentration of methane is now at around 1,859 parts per billion (ppb), around 257 percent of pre-industrial levels, and the concentration of nitrous oxide reached about 329.9 ppb, or 122 percent of pre-industrial levels.