13 August 2018

IPCC's political fix on 1.5°C will undermine its credibility

by David Spratt

The forthcoming Intergovernmental Panel on Climate Change (IPCC) special report on 1.5°C will suggest a significant "carbon budget" for the 1.5°C climate warming target, in a political fix that will further undermine the organisation's credibility.

The report will use unwisely low assumptions about the Earth's climate sensitivity to pull a rabbit out of a hat: a carbon budget that from any sensible risk-management perspective simply does not exist. The political effect will be to say that the climate crisis is less bad than it is, and that we can "allow" more fossil fuel emissions.

In fact, recent research shows that climate sensitivity is higher that the median used in recent IPCC reports, but now the 1.5°C report will go in the opposite direction. The final report will likely have an even higher 1.5°C "carbon budget" figure than in the drafts leaked in recent months.

This is a scandalous outcome that may finish the IPCC as a credible and dispassionate compiler of climate science research.   A report we will release on 20 August, What Lies Beneath: The understatement of existential climate risk, will show that IPCC reports tend toward reticence and caution, erring on the side of “least drama”, exhibiting a preference for conservative projections and scholarly reticence, and downplaying the more extreme and more damaging outcomes, such they are now becoming dangerously misleading with the acceleration of climate impacts globally.

02 August 2018

This northern summer’s heat waves could be the strongest climate signal yet

In El Salvador, many farmers have lost their lost corn crops to drought this summer. Agriculture is suffering in the high heat and dry conditions in several parts of the world. Credit: Oscar Rivera/AFP/Getty Images
 by Bob Berwyn, Inside Climate News

Earth's global warming fever spiked to deadly new highs across the Northern Hemisphere this summer, and we're feeling the results—extreme heat is now blamed for hundreds of deaths, droughts threaten food supplies, wildfires have raced through neighborhoods in the western United States, Greece and as far north as the Arctic Circle.

At sea, record and near-record warm oceans have sent soggy masses of air surging landward, fueling extreme rainfall and flooding in Japan and the eastern U.S. In Europe, the Baltic Sea is so warm that potentially toxic blue-green algae is spreading across its surface.