My reading this morning didn’t incline me to optimism. I don’t actually need reminding, but in case I did two items underlined that we remain very much on course for a 3 to 4 degree global temperature rise by the end of the century. A new report published by the Joint Research Centre of the European Commission and PBL Netherlands Environmental Assessment Agency describes a 45 percent increase in global CO2 emissions between 1990 and 2010, reaching an all-time annual high in 2010. Continue reading “Not good news”
Author: Bryan Walker
Dismissing Greens’ plan out of hand not justified
The immediate government reaction to the Greens’ announcement yesterday of their “100,000 green jobs” policy was to defend the economic status quo.
The Prime Minister John Key:
“They are talking about putting enormous taxes on New Zealand that would send a lot of businesses bankrupt.”
Transport Minister Steven Joyce weighed in:
“What they’re proposing is to add lots of costs, add lots of taxes and then magically, supposedly, all the jobs would be in place.”
The Greens’ proposals for raising the money to fund the green jobs initiative include a capital gains tax, a temporary levy on income to fund the rebuilding of Christchurch, a cutback on new motorway spending, and a toughening up of the generous subsidies offered by the ETS in its current form. I presume these are the costs and taxes that so alarm Key and Joyce. Continue reading “Dismissing Greens’ plan out of hand not justified”
Current extreme weather events part of climate change
Al Gore didn’t hesitate to dwell on extreme weather events as evidence of the reality of climate change in his closing address for the 24-hour Climate Reality Project last week. There has certainly been no lack of them in the past year or so. Was he pushing the boundaries of the science? It wouldn’t worry me too much if he was because there’s plenty else in the scientific projections which is clearly under way, such as the melting polar ice or the acidification of the oceans. But Gore is a very intelligent and well-informed man and I don’t think he allowed himself to be carried away beyond the scientific mandate. Consider what is being said by some scientists right now. Continue reading “Current extreme weather events part of climate change”
Climate Change and Global Energy Security
Academics Marilyn Brown and Benjamin Sovacool, who have impressive credentials in the field of energy policy, are co-authors of the recently published Climate Change and Global Energy Security: Technology and Policy Options, a substantial and detailed study of a very wide range of technologies covering both the promise of those options and the obstacles to their effective employment.
I was deeply depressed by the time I got to page 64 of the book. That was where the tale of five challenges ended. The authors had enlarged the energy and climate change scope of the book somewhat to identify five challenges threatening the prosperity of future generations: electricity, transportation, forestry and agriculture, waste and water, climate change. They do it thoroughly, and it seemed well-nigh impossible that the growing population of the world could possibly cope with these problem areas. But the reader is counselled in the final paragraph of the chapter not to give up in despair, as the issues can be broken down into more manageable challenges to which technology and policy solutions are readily available. Continue reading “Climate Change and Global Energy Security”
A lecture not to miss
Tim Naish’s lecture, of which we gave notice recently, is now recorded on the Climate Change Research Institute’s website. I warmly recommend it for viewing. Naish is one of the lead authors for the paleoclimate chapter for working group 1 of the IPCC Fifth Assessment Report due in 2013. In this lecture he uses paleoclimate material to provide perspective for the projections of rising global temperature and climate change. We are headed for climates and temperatures that haven’t been seen on the planet for more than a million years and the paleoclimate record helps us to understand what we might expect in terms of polar ice behaviour and sea level rise.
In fact we have to go back 3 million years – to the mid-Pliocene – before we see temperatures like those the models are projecting, 2 to 3 degrees warmer by 2100. The atmospheric CO2 level then was about 400 parts per million. This Pliocene warm period is becoming an important window into what we might expect incoming decades. Continue reading “A lecture not to miss”