The posts today are like the weather: gloomy, but it’s the environment we live in.
The Washington Post just featured this report: The Arctic may have crossed key threshold, emitting billions of tons of carbon into the air, in a long-dreaded climate feedback.
Mike Brown, who was a member of Vancouver’s Clouds of Change Task force 30 years ago (the first report by a municipality on climate change), has been doing analysis and raising questions with respect to Canada’s permafrost (and our responsibility) with urgency and trepidation.
Here is his update:
An article from the Washington Post is making its rounds today. Permafrost thaw has made the mainstream!
It refers to two reports* about the state of affairs. Each says that there’s evidence that the annual net emissions (thaw in winter months minus growth in summer months) from the permafrost are now about .6 Pg of Carbon. Here is a quote from the NOAA Arctic Report:
“ . . . suggests that carbon release in the cold season offsets net carbon uptake during the growing season (derived from models) such that the region as a whole could already be a source of 0.6 Pg C per year to the atmosphere.”
Here is what the reports don’t mention.Read more »