A Change in the Air

The burning of fossil fuels to power our homes, factories and cars has led to an increase in greenhouse gas emissions and a suspected rise in the earth's temperature, effecting the climate in many parts of the world. Watch this introduction to climate change. All our scientific findings give us a clear basis that climate change linked to human behaviour is the most pressing challenge threatening the survival of human communities, natural species and ecosystems around the worldî (Klaus Toepfer, United Nations Environment Programme, speaking at the Bonn Ecology Conference)