Earth is currently in what climatologists call an interglacial period, a warm pulse between long, cold ice ages when glaciers dominate our planet’s higher latitudes. For the past million years, these glacial-interglacial cycles have repeated roughly on a 100,000-year cycle. Now a team of Brown University researchers has a new explanation for that timing and why the cycle was different before a million years ago.
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Toxic Mercury in Aquatic Life Could Spike with Greater Land Runoff
A highly toxic form of mercury could jump by 300 to 600 percent in zooplankton – tiny animals at the base of the marine food chain – if land runoff increases by 15 to 30 percent, according to a new study.
And such an increase is possible due to climate change, according to the pioneering study by Rutgers and other scientists published today in Science Advances.
“With climate change, we expect increased precipitation in many areas in the Northern Hemisphere, leading to more runoff,” said Jeffra K. Schaefer, study coauthor and assistant research professor in Rutgers’ Department of Environmental Sciences. “That means a greater discharge of mercury and organic carbon to coastal ecosystems, which leads to higher levels of mercury in the small animals living there. These coastal regions are major feeding grounds for fish, and thus the organisms living there serve as an important source of mercury that accumulates to high levels in the fish people like to eat.”
Nordic countries are bringing about an energy transition worth copying
What can we learn from the Nordic low-carbon energy transition given the new US leadership vacuum on climate change? A new study by Professor Benjamin Sovacool at the University of Sussex offers some important lessons.
The Trump administration's "First energy plan" criticises the "burdensome" regulations on the energy industry and aims to eliminate "harmful and unnecessary policies such as the Climate Action Plan" which was introduced by President Barack Obama. It has also deleted all mentions of climate change and global warming from the White House website.
NYC Toddlers Exposed to Potentially Harmful Flame-Retardants
Researchers at the Columbia Center for Children’s Environmental Health (CCCEH) within the Mailman School of Public Health report evidence of potentially harmful flame-retardants on the hands and in the homes of 100 percent of a sample of New York City mothers and toddlers. The study also found that, on average, toddlers in New York City had higher levels of common flame-retardants on their hands compared to their mothers.
New tool helps oyster growers prepare for changing ocean chemistry
For Bill Mook, coastal acidification is one thing his oyster hatchery cannot afford to ignore.
Mook Sea Farm depends on seawater from the Gulf of Maine pumped into a Quonset hut-style building where tiny oysters are grown in tanks. Mook sells these tiny oysters to other oyster farmers or transfers them to his oyster farm on the Damariscotta River where they grow large enough to sell to restaurants and markets on the East Coast.
The global ocean has soaked up one third of human-caused carbon dioxide (CO2) emissions since the start of the Industrial Era, increasing the CO2 and acidity of seawater. Increased seawater acidity reduces available carbonate, the building blocks used by shellfish to grow their shells. Rain washing fertilizer and other nutrients into nearshore waters can also increase ocean acidity.
IKEA Canada to purchase second wind farm in Alberta
Burlington, ON – IKEA Canada has signed agreements to acquire an 88MW wind farm located near Drumheller, Alberta approximately 130km east of Calgary. Consisting of 55 turbines, the Wintering Hills wind farm will generate 275 million kWh (kilowatt hours) of energy, the equivalent to the electricity consumption of 54 IKEA stores or nearly 26,000 Canadian households.