Our world, our climate is changing. But what's really causing it? What does the future hold? Are we too far gone to change that future?
Difficult questions forcing difficult choices. Join the BBC and the Open University to explore one of the greatest challenges of all our lives.
What happens next?
Can we predict anything about our erratic weather? Explore the basics of climate prediction.
A rollercoaster ride
As the results are announced, we look back at the rollercoaster ride of the experiment in the climate prediction .net story.
Heat rising - but how much?
Tracking change requires knowing what happened before. With an entire planet, over millions of years, how to start taking the temperature?
On bbc.co.uk
Understand the science, get the results of the experiment, and watch reports from the front line with Climate Change on bbc.co.uk.
Degrees and dollars
A shift in climate has wider effects than those felt by the natural world: Explore the economic impact of climate change.
Talk about it
Power to the people
A search for ET inspired an initiative to involve everybody in grassroots climate prediction.
Understand your world
A first step in changing the world is understanding it. If you want to know more, find out about taking it further.
Order your free prospectus
Find out more about OU courses on offer and ways to study - order your guide to courses.