Ice Sheet Loss from Greenland and Antarctica Track Worst-case IPCC AR5 Projections

Nature Climate Change, August 31   The Greenland and Antarctic ice sheets have increased global sea level by 12.3 mm from 2007 and 2017, matching the most pessimistic predictions of the IPCC’s most recent assessment report (AR5). In particular, this study indicated that current models underestimate the contribution of ice sheet surface melt.  The comparison […]

Emissions To-date Consistent with Worst-Case Scenario for Global Warming

Proceedings of the National Academy of Sciences, August 3 Despite recent progress on bending the emissions curve and the global pandemic, cumulative CO2 emissions measured between 2005 and 2020 place us on track (within 1%) of RCP8.5, the most aggressive scenario in assumed fossil fuel use. Between 2030 and 2050, human CO2 emissions will likely […]