Earth Changes
Oceans have already absorbed a third of the world's emissions of carbon dioxide, one of the heat-trapping gases blamed for global warming, leading to acidification that prevents vital sea life from forming properly.
The forecast called for more showers on Tuesday. Parts of the eastern Fraser Valley were hit by 300 millimetres of rain in the last few days that caused the Chilliwack River to overflow.
"The first massive movement of climate refugees has been that of people away from the Gulf Coast of the United States," said the Earth Policy Institute, which has warned for years that climate change demands action now.
Institute president Lester Brown said that about a quarter of a million people who fled the devastating impact of Hurricane Katrina a year ago must now be classed as "refugees".
"Interestingly, the country to suffer the most damage from a hurricane is also primarily responsible for global warming," he said.
Satellite measurements of the area of the Arctic covered by sea ice show that for every month this winter, the ice failed to return even to its long-term average rate of decline. It is the second consecutive winter that the sea ice has not managed to re-form enough to compensate for the unprecedented melting seen during the past few summers.
The report, published by the UK government, says there is only a small chance of greenhouse gas emissions being kept below "dangerous" levels.
It fears the Greenland ice sheet is likely to melt, leading sea levels to rise by seven metres over 1,000 years.
The poorest countries will be most vulnerable to these effects, it adds.
Because plastic doesn't break down the way organic material does, ocean currents and tides have carried it thousands of miles (kms) to an area between Hawaii and the U.S. West Coast, according to the study by the international environmental group Greenpeace.
This swirling vortex, which can grow to be about the size of Texas, is not far from the Northwestern Hawaiian Islands, designated as a protected U.S. national monument in June by President George W. Bush.
The larger species are being replaced by smaller varieties, which don't grow high enough to protect the fish, lobster and other sea life that rely on the underwater reefs, said Peter Edmunds, a biology professor at California State University, Northridge.