NASA’s GISTEMP temperature estimates for February 2017 are now out. February 2017 was the second-warmest February since records began (the first-warmest being in 2016) and was tied for the fourth-warmest monthly anomaly for any month.
Here is a plot of all monthly anomalies since 1998. I have coloured the lines for the three recent record years of 2014, 2015 and 2016.
We are currently not in El Niño conditions, so it is rather extraordinary that the temperatures are running so warm—warmer in fact than during any El Niño before 2016. The average temperature this year so far, 1.01° C, is warmer than the record-breaking annual average for 2017 of 0.98° C. This does not mean that 2017 will set a new record: it’s possible, but not likely, as I will try to show. Continue reading
If the world is successful in reducing emissions sufficiently to avoid dangerous climate change, there is a limited future for a prospering oil-sands sector in Canada. The conventional wisdom among the Canadian establishment is that growing the oil-sands business is compatible with meeting national and global emissions commitments. This is a myth that obscures government policy contradictions.
In a recent Globe and Mail article Environmentalists should end the charade over the oil sands, Martha Hall Findlay and Trevor McLeod argue that keeping oilsands in the ground and stopping new oil pipelines will actually increase global greenhouse gas emissions.
Their argument rests on two premises:
- Oil demand won’t start to fall until 2040. After that it will remain high for many years.
- Oil-sands production is becoming less emissions intensive thanks to improving technology. If oil-sands consumption by US refineries were replaced by, say, more emissions-intensive Venezuelan heavy crude, then global emissions would increase.
I won’t dispute the second point in detail, at least for now. The case I’m making here does not depend on rebutting it. If overall oil-sands upstream emissions intensities really are falling due to improved technology, that’s welcome news. But I haven’t seen the most recent average emissions data that back it up. My understanding is that newer projects are predominantly in-situ facilities that are more emissions intensive than mines, so that the average GHG emissions per barrel is actually rising slowly.
My focus here will be the first point, where Hall Findlay and McLeod made an important error by misrepresenting the scenarios from the IEA’s World Energy Outlook 2016. They wrote: Continue reading