Polar bears on the frontline of climate change

Temperatures in the Arctic are rising at least twice as fast as the global average and sea ice cover is diminishing by nearly four per cent per decade. The loss of sea ice affects polar bears’ ability to find food, studies show.

Will climate change lead to a new ice age or no polar ice at all?

2019-05-13T09:49:00+01:00Sponsored by Roche Diagnostics

Ice ages have occurred in a hundred thousand year cycle for the last 700 thousand years, and there have been previous periods that appear to have been warmer than the present despite CO2 levels being lower than they are now. More recently, we have had the medieval warm period and ...

Sea life threatened by warmer oceans

The atmosphere affects oceans, and oceans influence the atmosphere. As the temperature of the air rises, oceans absorb some of this heat and also become warmer.

How climate change is affecting the world’s forests

Forests are important in determining the accumulation of greenhouse gases in the atmosphere; they absorb 2.6 billion tonnes of carbon dioxide each year, about one-third of the carbon dioxide released from the burning of fossil fuels.