I have been listening to a lecture by Victoria University climate scientist, James Renwick, who has recently moved to the university from his post as principal climate scientist at NIWA. In the seminar he sets out in broad terms some of the latest developments in the science. It’s a very clear summation, with some recent interesting graphs and charts, showing the direction which in which climate change is continuing to move. Needless to say there’s no change in direction apparent. I recommend the lecture as well worth listening to. I’ll only touch lightly in this post on the scientific content of the lecture; my main purpose is to highlight comments Renwick made along the way indicating the concern he feels about where we are headed.
I was particularly struck by an early statement made after he had remarked on the 2011 emissions reaching a record level of 31.6Gt and pointed to the graph of steadily increasing concentration of CO2 measured at Mauna Loa. I’ve transcribed it: Continue reading “Jim Renwick on the state of climate science”
This week’s Sciblogs podcast is something of a climate special. The Science Media Centre’s Peter Griffin opens the show by talking to me about the High Court hearing of the case brought against NIWA by Barry Brill and his boys, and then discusses what we know about the state of the climate with Jim Renwick, now ensconced at Victoria University. Peter also talks to Dr Melanie Massaro about her paper Trapped in the postdoctoral void. You can listen to the podcast at Sciblogs, or subscribe via iTunes or Stitcher. Recommended.
A crisp and crunchy show this week, as Gareth and Glenn interview Dr James Renwick about the IPCC’s cautious new report on extreme weather and the riskier future we all face. With added ruminations on the potential slowdown in international action at the Durban conference, record greenhouse gas levels reached in 2010, the prospect of “hyper warming” and the release of some lightly warmed over stolen emails. No debunking a la Cook this week, but he’ll be back soon, and we have news of the world’s first hybrid jet aircraft.
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Continue reading “The Climate Show #22: Durban doubts & Renwick on extremes”
This review of Bob Carter’s latest book, by Dr James Renwick, Principal Scientist at NIWA’s Climate Variability & Change group, was first published in the March newsletter of the Geoscience Society of New Zealand. My thanks to Jim for permission to republish it here.
This book is a curious read, full of misinformation, straw-man arguments, and poorly-documented assertions. To become immersed in it, we must enter the through-the-looking-glass world of the “independent” scientist, where those such as myself are the ones “…who have dissembled, told half-truths, cherry-picked their data, fantastically exaggerated, and suppressed the circulation of better science” (Prefatory Essay, p. 19). Meanwhile, the ideas put forward by Prof. Carter are portrayed as representing a balanced appraisal of the issues. From where I sit, that’s the opposite of reality.
Continue reading “Climate: The Counter Consensus”
I must have been asleep last week when the IPCC announced its selection of authors for the Fifth Assessment Report (AR5), due in 2013/14. As usual, NZ scientists are making a significant contribution:
- Tim Naish is a lead author for Working Group 1 (The Physical Science Basis) chapter 5, Information from Paleoclimate Archives.
- Jim Renwick is a lead author for WG1 Chapter 14, Climate Phenomena and their Relevance for Future Regional Climate Change.
- David Wratt is a review editor for Chapter 14 (as is Kevin Trenberth)
- Phil Boyd (NIWA) is a lead author for WG2 (Impacts, Adaptation and Vulnerability), Chapter 6, Ocean Systems.
- Alistair Woodward is one of the two Coordinating Lead Authors for WG2, Chapter 11, Human Health.
- Andy Reisinger is a Coordinating Lead Author for Chapter 25, Australasia, Paul Newton (AgResearch) and Andrew Tait (NIWA) are lead authors, and Blair Fitzharris is a Review Editor.
- Ralph Sims is a Coordinating Lead Author for Working Group 3 (Mitigation of Climate Change), Chapter 8, on Transport.
- Harry Clark is a lead author for WG3, Chapter 11, Agriculture, Forestry and Other Land Uses (AFOLU).
- Complete author lists: WG1, WG2, WG3.
Congratulations to all. Now the hard work starts…
And a plug: Jim Renwick is giving a talk on climate change at the Hurunui Library (yes, the one in the heat pump ads) in Amberley on Monday, July 5th at 7-30pm. All welcome. I’ll be heckling from the cheap seats…
[Thanks to Frogblog]