Why is it that despite overwhelming evidence and fundamental science, some people still don't accept that climate change is real and that human activity is contributing to it?
Is it because the science is not being understood? Is it because it is difficult to accept that humans are capable of changing the climate? Is there a link between climate change scepticism and ideology? Is there a link between the belief in the science and belief in God?
If you know anyone who challenges the science of climate change - or completely denies it's happening at all - then this book is for you, and for them. Don't worry, your friend is human after all, and such behaviour can be explained.
A Climate for Denial
gives a summary of the reasons your friend is a sceptic.