And we are off! According to the Japan-hosted IARC-JAXA Information System (IJIS) sea ice extent data series, which can be viewed here, Arctic sea ice extent peaked on 15th March. There is a very good summary of what happened last year and what to expect this year here, and I blogged on tracking the coming ice melt season a week or so ago. The million dollar question: how many years has this canary in the climate change coal mine got left?
I have always enjoyed Gail the Actuary’s posts at The Oil Drum, even if I disagree with a lot of what she says. She also posts at her own blog Our Finite World. This week she has an interesting piece picking at the underbelly of renewable economics. I am not entirely convinced; these kinds of exercise always ignore the fact that renewables are coming down their cost curves due to learning-by-doing economies. They also fail to take into account the externalities associated with climate change. Yes, renewable investment is a hugely costly enterprise. So what. Extremely dangerous climate change is also a hugely costly enterprise. This calls to mind Churchill’s adage: “It is not enough that we do our best; sometimes we must do what is required.”