"Climate change is a major obstacle to a 2004 global treaty aimed at cutting exposure to 21 highly dangerous chemicals, says a new U.N.-commissioned report issued Monday. The 66-page report says the risks of exposure could increase if more stockpiles and landfills leak due to flooding, or other extreme weather linked to rising temperatures."

"Pollen season is lengthening in proportion to warming observed in North America: An extra two weeks, on average, across Wisconsin, Nebraska, Minnesota and almost a full month in the Canadian breadbasket."

"WASHINGTON -- Fifty million 'environmental refugees' will flood into the global north by 2020, fleeing food shortages sparked by climate change, experts warned at a major science conference that ended here Monday."

"Over the past 100 years, some two-thirds of the large predator fish in the ocean have been caught and consumed by humans, and in the decades ahead, the rest are likely to perish, too."

"Oil-price swings have doubled this year as unrest spreads through the Middle East, source of one- third of global crude supply, hampering producer and consumer efforts to stabilize the world’s biggest commodity market."

"Strict curbs on soot and ozone air pollution would limit global warming by 0.5 degree Celsius (0.9 F) in a step toward achieving tough world climate goals, a U.N.-backed study showed on Friday."

"A wave of charged plasma particles from a huge solar eruption has glanced off the Earth's northern pole, lighting up auroras and disrupting some radio communications, a NASA scientist said."

"Japan abandoned the rest of its whale hunting season in Antarctic waters Friday citing repeated harassment by Sea Shepherd activists, after netting only a fifth of its targeted catch of 850 whales."

"Climate change could put trillions of investment dollars at risk over the next 20 years, a global study released on Wednesday said, calling for pension funds and other investors to overhaul how they allocate funds."

"Extreme rainstorms and snowfalls have grown substantially stronger, two studies suggest, with scientists for the first time finding the telltale fingerprints of man-made global warming on downpours that often cause deadly flooding."