Category Archives: Michael Mann

Another hockey stick

Realclimate has already covered this, so I won’t say much, but there is a recent paper (Kopp et al. 2016) that does a sea level reconstruction for the past almost 3000 years. The key figure is below, with the red … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, Global warming, Michael Mann, Science | Tagged , , , , | 24 Comments

Climateball(TM): re-energised

Apart from writing some blog posts here (and thanks to MT and others, I’ve had to write fewer than normal) I’ve largely been staying out of the whole online climate debate; ignoring the ClimateballTM mantra that the only losing move … Continue reading

Posted in Climate change, ClimateBall, Global warming, Michael Mann, Science | Tagged , , , , | 66 Comments

Michael Mann and Bill Maher

Given that some are promoting a despicable book about Michael Mann (you can read Greg Laden or Sou’s posts if you want some context) I thought I might post this recent Bill Maher interview with Michael Mann. It’s short and … Continue reading

Posted in Global warming, Michael Mann, Science | Tagged , , , , | 69 Comments

A better comparison

I thought I might briefly highlight the recent Cowtan et al. paper Robust comparison of climate models with observations using blended land air and ocean sea surface temperatures. As Ed Hawkins points out, it’s really an attempt to do an … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, Global warming, Michael Mann, Science | Tagged , , , , , , , | 42 Comments

Hmmm, entering a cooling phase?

I thought I would briefly comment on a recent paper by McCarthy et al. called Ocean impact on decadal Atlantic climate variability revealed by sea-level observations. The paper seems to be suggesting that the Atlantic MultiDecadal Oscillation (AMO) may be … Continue reading

Posted in Climate change, Climate sensitivity, Michael Mann, Science | Tagged , , , , , , | 40 Comments

Arguing about 2 degrees C

A couple of days ago I read a Nature comment by Oliver Geden called Policy: Climate advisers must maintain integrity. My intial impression was quite positive as it seemed to say some quite reasonable things, for example Scientific advisers must … Continue reading

Posted in advocacy, Climate change, Climate sensitivity, ClimateBall, Global warming, Michael Mann, Science | Tagged , , , , , , | 133 Comments

Some thoughts on internal variability

Given that there’s been some discussion about internal variability in my previous post, and because there seems to have been interest elsewhere, I thought I would post some thoughts. A paper I was reading recently is Internal variability of Earth’s … Continue reading

Posted in Climate change, Climate sensitivity, ENSO, Global warming, IPCC, Michael Mann, Science | Tagged , , , , , , , , , | 90 Comments