The US and China are the largest contributors of greenhouse gases.
Catastrophic climate change may yet be avoided if global average temperatures rise by less than 2°C above pre-industrial levels.
The world has already warmed 0.74°C over the past 100 years.
The 10 hottest years on record have occurred since 1990.
Arctic sea ice has declined to the lowest levels on record.
WWF estimates 2/3 of the world’s polar bear population will be gone by 2050.
Climate change is the biggest threat to nature and humanity in the 21st century.
Climate change is everywhere
Today we are seeing the impacts of global climate change - melting glaciers, rising sea levels, stronger storms and floods, less snow to the north and increased drought to the south.While individual events cannot be linked to global warming with certainty, multiple events, observations in nature, and observations by people living close to nature tell the full story of the effects of climate change.
Observations in nature
In almost 100 countries, WWF is working with people close to nature. By asking them about changes they see we are putting together a global map of Climate Witnesses which describe the changes taking place.What is climate change?
Causes of climate change
Impacts of climate change
Solutions to climate change
