A double-header, with two "don't miss it" interviews.

We start out with Dr. Peter Ward author of the revolutionary climate book "Under A Green Sky." Peter has just returned from an exploratory trip in Australia, and will head to Antarctica later this year.

Dr. Ward has summarized the newest science which shows that 4 out of the past 5 great extinctions were not caused by asteroid hits - but by wrenching and deadly climate change. The cause? Carbon dioxide belching out of volcanoes. But now we are the volcanoes - and the end result may be the same: out of control climate turbulence followed by the deafening silence of mass extinctions.

Dr. Ward tells us about the new TV series coming out on Animal Planet - called "Animal Armageddon". Peter is the chief scientists on that project, which hopes to bring the awful reality of climate change to television watchers.

Then we go for solutions. Julian Darley, author of "High Noon for Natural Gas" saw our energy crisis coming years ago. We are hitting Peak Oil - production can't go up, and will go down. You may have noticed this little problem at the pump. And in the storms hitting the Americas, and Asia.

Darley explains why he founded The Post Carbon Institute and gives us some tips on how to solve the energy crisis - without waiting for some miracle technology. We look at emerging solutions like relocalize.net - and his experiment with sharing commercial vehicles. Good stuff.

Music is "House of Trouble" by Clatter.