Recent posts

Millennia of sea-level change

How has global sea level changed in the past millennia? And how will it change...
Read more

What is the best description of the greenhouse effect?

What exactly is the greenhouse effect? And what does it look like if we view it...
Read more

Marvel et al (2015) Part III: Response to Nic Lewis

The first post in this series gave the basic summary of Read more
Read more

Anti-scientists

Ross McKitrick was so upset about a paper ‘Learning from mistakes in climate...
Read more

New On-line Classes and Models

My free online class on Coursera.org entitled Global Warming I: The Science and...
Read more