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Category Archives: Climate Change

Evidence for declining forest resilience to wildfires under climate change

Evidence for declining forest resilience to wildfires under climate change. Ecology Letters, (2018) 21: 243–252 doi: 10.1111/ele.12889

“Forest resilience to climate change is a global concern given the potential effects of increased disturbance activity, warming temperatures and increased moisture stress on plants. We used a multi-regional dataset of 1485 sites across 52 wildfires from the US Rocky Mountains to ask if and how changing climate over the last several decades impacted post-fire tree regeneration, a key indicator of forest resilience. Results highlight significant decreases in tree regeneration in the 21st century. Annual moisture deficits were significantly greater from 2000 to 2015 as compared to 1985–1999, suggesting increasingly unfavourable post-fire growing conditions, corresponding to significantly lower seedling densities and increased regeneration failure. Dry forests that already occur at the edge of their climatic tolerance are most prone to conversion to non-forests after wildfires. Major climate-induced reduction in forest density and extent has important consequences for a myriad of ecosystem services now and in the future.”

Boulder, Colorado latest city to sue Big Oil over climate change

Grist: “Remember those lawsuits California and New York filed against major oil producers for knowingly heating up the planet? Two counties in Colorado just teamed up with the city of Boulder to file a similar lawsuit of their own. The complaint alleges that oil companies contributed greenhouse gases to the atmosphere for decades while knowing the… Continue Reading

State of the Global Air 2018

“How clean is the air you breathe? This second issue of the State of Global Air report expands on last year’s report by adding household air pollution and total air pollution to our discussion of air quality and health for all countries around the globe. It is based on the most recent data available (for… Continue Reading

The World’s Wilderness: Going, Going and Soon Gone?

Outside: Recent studies have arrived at the same blunt conclusion: the world’s last, big wildlands are disappearing at an alarming rate. Is there anything to be done? ““We are running out of wilderness,” James Watson, director of the science and research initiative at the Wildlife Conservation Society, told fellow scientists last summer at the International… Continue Reading

Anticipated Park Service Report on risks from sea level rise delayed after extensive data censorship

Reveal – Center for Investigative Reporting: “National Park Service officials have deleted every mention of humans’ role in causing climate change in drafts of a long-awaited report on sea level rise and storm surge, contradicting Interior Secretary Ryan Zinke’s vow to Congress that his department is not censoring science. The research for the first time… Continue Reading

Study: wind and solar can power most of the United States

The Guardian – John Abraham: “In order to combat climate change, we need to rapidly move from fossil fuel energy to clean, renewable energy. The two energy sources I am most interested in are wind and solar power; however, there are other sources that have great potential. Some people doubt how much wind and solar… Continue Reading

NOAA – Garbage Patches: How Gyres Take Our Trash Out to Sea

NOAA Ocean Podcast: Episode 14 How the gyres that circulate our ocean waters also accumulate plastics. Find out what a garbage patch is and isn’t, and what we can do about this ocean-sized problem. “..Gyres are large systems of circulating ocean currents, kind of like slow-moving whirlpools. There are five gyres to be exact—the North… Continue Reading

Report – Worsening Worldwide Land Degradation Now ‘Critical’, Undermining Well-Being of 3.2 Billion People

“Worsening land degradation caused by human activities is undermining the well-being of two fifths of humanity, driving species extinctions and intensifying climate change. It is also a major contributor to mass human migration and increased conflict, according to the world’s first comprehensive evidence-based assessment of land degradation and restoration. The dangers of land degradation, which… Continue Reading

Climate Change Could Force Over 140 Million to Migrate Within Countries by 2050

“The worsening impacts of climate change in three densely populated regions of the world could see over 140 million people move within their countries’ borders by 2050, creating a looming human crisis and threatening the development process, a new World Bank Group report finds. But with concerted action – including global efforts to cut greenhouse… Continue Reading

Urban Heat: Can White Roofs Help Cool World’s Warming Cities?

Yale Environment 360: “Summers in the city can be extremely hot — several degrees hotter than in the surrounding countryside. But recent research indicates that it may not have to be that way. The systematic replacement of dark surfaces with white could lower heat wave maximum temperatures by 2 degrees Celsius or more. And with… Continue Reading

How famous DC cherry blossom trees reveal impacts of climate change

AccuWeather: “In anticipation of the annual springtime National Cherry Blossom Festival, millions of people await the announcement of the peak bloom date of Washington, D.C.’s famous cherry blossoms each year. Flowers from the cherry trees, which were gifted from Japan to the United States in 1912, have bloomed earlier in recent years. Warmer weather appears… Continue Reading

Safe Climate Caucus Members Urge Trump To Halt “Systematic Effort” To Reduce Public Access To Climate Change Resources

“[February 28, 2018] the Congressional Safe Climate Caucus sent a letter condemning the White House’s systematic effort to reduce and suppress public access to climate change resources through federal channels. The members highlighted many examples and expressed their concerns that these efforts violate the intent of the Federal Records Act.  The letter comes after a… Continue Reading