New study exposes negative effects of climate change on Antarctic fish
July 31, 2015 09:14 AM - Oxford University Press
Scientists at University of California Davis and San Francisco State University have discovered that the combination of elevated levels of carbon dioxide and an increase in ocean water temperature has a significant impact on survival and development of the Antarctic dragonfish (Gymnodraco acuticeps). The research article was published today in the journal Conservation Physiology.
UK Bog ecosystem threatened by climate change impacts
July 31, 2015 07:03 AM - University of Leeds.
An entire ecosystem is at risk from the effects of climate change on the UK’s blanket bogs, scientists at the University of Leeds have warned.
These wetland habitats provide important feeding and nesting grounds for bird species including the dunlin, red grouse and golden plover. Blanket bogs are also the source of most of our drinking water and vital carbon stores.
The scientists warn that the effects of climate change, such as altered rainfall patterns and summer droughts, could drastically affect bog hydrology, which in turn could affect insect and bird populations.
Forests take years to rebound from drought
July 30, 2015 04:38 PM - University of Utah
In the virtual worlds of climate modeling, forests and other vegetation are assumed to bounce back quickly from extreme drought. But that assumption is far off the mark, according to a new study of drought impacts at forest sites worldwide. Living trees took an average of two to four years to recover and resume normal growth rates after droughts ended, researchers report today in the journal Science.
Greenhouse Gas Emissions from US Corn Belt have been Underestimated
July 29, 2015 08:55 AM - University of Minnesota
Estimates of how much nitrous oxide, a significant greenhouse gas and stratospheric ozone-depleting substance, is being emitted in the central United States have been too low by as much as 40 percent, a new study led by University of Minnesota scientists shows.
How Corn Became King
July 28, 2015 09:12 AM - Kelly April Tyrrell, University of Wisconsin-Madison
Ten thousand years ago, a golden grain got naked, brought people together and grew to become one of the top agricultural commodities on the planet.
Now, University of Wisconsin-Madison researchers have found that just a single letter change in the genetic script of corn's ancestor, teosinte, helped make it all possible.
Publishing in the journal Genetics this month, UW-Madison genetics Professor John Doebley and a team of researchers describe how, during the domestication of corn, a single nucleotide change in the teosinte glume architectural gene (tga1) stripped away the hard, inedible casing of this wild grass, ultimately exposing the edible golden kernel.
California Farmers Switch to Less Thirsty Crops
July 28, 2015 08:56 AM - Lesley McClurg, NPR
Water scarcity is driving California farmers to plant different crops. Growers are switching to more profitable, less-thirsty fruits, vegetables and nuts.
Arctic ice growth doesn't disprove climate change
July 27, 2015 08:52 AM - Steve Williams, Care2
New data shows that in 2013 Arctic ice actually grew rather than retreating as climate change models had predicted. Far from proving climate change is a myth or that ice retreat has ended, as skeptics are now claiming, this reveals something much more interesting about our warming climate.
New MIT study on the historical climate of the American West
July 27, 2015 06:56 AM - MIT News
All around the deserts of Utah, Nevada, southern Oregon, and eastern California, ancient shorelines line the hillsides above dry valley floors, like bathtub rings — remnants of the lakes once found throughout the region. Even as the ice sheets retreated at the end of the last ice age, 12,000 years ago, the region remained much wetter than it is today. The earliest settlers of the region are likely to have encountered a verdant landscape of springs and wetlands.
So just when and why did today’s desert West dry out?
Ocean acidification is impacting phytoplankton now
July 26, 2015 08:37 AM - Steve Williams, Care2
Scientists are warning that ocean acidification is impacting microorganisms in our ocean known as phytoplankton and, as they pay a key role in ocean habitats, any future loss or change in species numbers could impact marine life in a big way.
Ocean acidification isn’t always mentioned in conjunction with phytoplankton blooms, and the U.S. Government has been slow to link the two, but MIT researchers say acidification of our oceans could impact phytoplankton in a big way, and that will be bad news for our marine life.
Mangroves help protect against sea level rise
July 23, 2015 02:28 PM - University of Southampton
Mangrove forests could play a crucial role in protecting coastal areas from sea level rise caused by climate change, according to new research involving the University of Southampton.