Posted on July 30, 2015 by Bob Berwyn
Research tracks path of carbon dioxide via agriculture to underground storage
FRISCO — Vast aquifers beneath the world’s deserts may be significant carbon sinks, scientists with the University Corporation for Atmospheric Research said.
In a new study, the UCAR researchers estimated that those aquifers may store more carbon than all the plants on land.
About 40 percent of the carbon dioxide produced by people stays in the atmosphere and heats the planet. About 30 percent is taken up by oceans, where it is rapidly acidifying the water to the detriment of shellfish and other marine species.
The other 30 percent is partially absorbed by land plants, but when scientists ran CO2 models, it didn’t add up, so they started searching for additional carbon sinks. Continue reading
Filed under: climate and weather, climate change, Democracy, global warming | Tagged: carbon cycle, carbon dioxide sinks, climate change, CO2, desert aquifers, Environment, UCAR | 2 Comments »
Posted on July 25, 2015 by Bob Berwyn
Global capacity grew to 370 gigawatts in 2014
FRISCO — Europe is now generating about 8 percent of its total energy usage from wind power, according to an annual report from the European Commission’s Joint Research Centre.
If that doesn’t sound like a lot, here’s another way to look at it: Windpower generated enough electricity to cover the combined annual consumption of Belgium, the Netherlands, Greece and Ireland. Thanks to the ever-decreasing costs of building new windpower facilities, the EU could be producing at least 12 percent of its annual power needs with turbines by 2020.
The report confirms that wind power has been the most widely deployed form of renewable energy in the past two decades, with the global cumulative capacity growing to 370 gigawatts in 2014. Last year represented an annual record with 52.8 GW of wind turbines capacity installed worldwide, a 48% percent increase compared to 2013 and 17 percent over the 2012 record of 45.2GW. Continue reading
Filed under: climate and weather, energy, Environment, global warming, renewable energy | Tagged: climate change, Environment, EU renewable energy, wind power | 1 Comment »
Posted on July 23, 2015 by Bob Berwyn
Some reef-ringed atolls will see their drinking water supplies wiped out due to global warming.
Island flooding likely to increase dramatically as coral reefs die
FRISCO —Besides losing critical marine nurseries, the decline of coral reefs will put some island communities at direct risk of flooding and even threaten freshwater drinking supplies, according to a new study that tries to project how climate change will affect the ability of coral reefs to mitigate coastal hazards.
About 30 million people living on low-lying coral islands and atolls are dependent on ecosystem services provided by reefs. Right now, some of those islands see flooding from large waves a few times each decade, but that number is expected to increase dramatically. Continue reading
Filed under: Environment, global warming, biodiversity, climate and weather, coral reefs | Tagged: Environment, global warming, climate change, coral reefs, flooding, Islands | Leave a comment »
Posted on July 22, 2015 by Bob Berwyn
In late June, smoke from wildfires in Canada streamed down over North Dakota, South Dakota, Minnesota, and Iowa. Photo courtesy NASA Earth Observatory.
New study tracks regional nuances, global trends
FRISCO — U.S. Forest Service scientists and other researchers say there has been a significant increase in the length of wildfire seasons on nearly every continent, with the exception of Australia. Fire weather seasons around the globe have increased by nearly 20 percent and the global burnable area doubled over the past 35 years.
Most vegetation types, except boreal forests, showed significant increases in the fire weather season length, the new study found. Some areas, such as the Western and Southeastern United States, Alaska, tropical and sub-tropical South America and Eastern Africa and large parts of Eurasia show a steady lengthening of the fire season from 1979-2013. Continue reading
Filed under: climate and weather, climate change, Environment, forest fires, forests, global warming, wildfires | Tagged: climate change, Environment, forest fires, global warming, greenhouse gases, Wildfires | Leave a comment »
Posted on July 21, 2015 by Bob Berwyn
Scientists ‘shocked’ by scope of changes
Scientists say there will dramatic changes in ocean plankton communities by the end of the 21st century. Photo courtesy NOAA.
FRISCO — Global warming is likely to have a big effect on the abundance and diversity of ocean phytoplankton, with some species dying out and other flourishing, researchers said after completing a study that tries to anticipate the impacts of ocean acidification.
Since pre-industrial times, the pH of the oceans has dropped from an average of 8.2 to 8.1 today, and by end of the century, could drop to 7.8 — much lower than any levels seen in open ocean marine communities today. Continue reading
Filed under: climate and weather, global warming, ocean acidification | Tagged: climate change, Environment, ocean acidification, phytoplankton | 2 Comments »
Posted on July 20, 2015 by Bob Berwyn
Year to date also the warmest ever, new NOAA report says
Most of the world’s land and ocean areas were much warmer than average in June.
FRISCO — Global temperatures soared to another record high in June, reaching 1.58 degrees Fahrenheit above the 20th century average and breaking the mark set just last year by 0.22 degrees Fahrenheit — which may not sound like much, but it’s a pretty big increment in the world of temperature records.
The first six months of 2015 were also record warm, NOAA’s National Climatic Data Center said in its monthly State of the Climate report released today. For the first six months of the year, the global land and ocean surface average temperaure was 1.53 degrees above the 20th century average, beating the 2010 record by 0.16 degrees Fahrenheit. Read the full report here.Both land and sea surface temperatures were record warm in June, with the globally-averaged land surface temperature running 2.27 degrees Fahrenheit above average, and global sea surface temps at 1.33 degrees above the 20th century average.
Filed under: climate and weather, Environment | Tagged: 2015 global temperatures, climate change, ecocide, Environment, global warming, June 2015 global temperatures, NOAA | Leave a comment »
Posted on July 19, 2015 by Bob Berwyn
Polar bear photo courtesy Eric Regehr, USFWS.
New study shows food shortages will catch up to the Arctic predators
FRISCO — When it comes to finding food as Arctic sea ice melts, polar bears don’t exactly have a lot of options.
That’s one of the main reasons the Arctic predators are under the global warming gun, and a new study of how the bears respond metabolically during lean times underscores the existing science. Continue reading
Filed under: Arctic, biodiversity, endangered species, Environment, global warming | Tagged: biodiversity, climate change, endangered species, global warming, polar bears | 1 Comment »