Agree:
Barack Obama Former President of United States of America
Climate change is the greatest long-term threat facing the world, as well as a danger already manifesting itself as droughts, storms, heat waves and flooding.
Leonardo DiCaprio American actor, film producer, and environmental activist
Climate change is not hysteria – it's a fact
Ban Ki-moon Secretary General of the United Nations
Clock is ticking toward climate catastrophe
L. Rafael Reif President, Massachusetts Institute of Technology
I urge everyone to join us in rising to this historic challenge.Disagree:
David Bellamy English author, broadcaster, environmental campaigner and botanist
For the last 16 years, temperatures have been going down and the carbon dioxide has been going up and the crops have got greener and grow quicker. We’ve done plenty to smash up the planet, but there’s been no global warming caused by man
