The issue focused on the state of the world in 2015, with the most recent data available. It also examined the effects of global warming on sea levels, and the effects of climate change on sea levels in specific regions.

The report was prepared by the Intergovernmental Panel on Climate Change (IPCC), a United Nations agency of scientists, and published online on Dec. 14 by the Web site arXiv.org.

The researchers used data from the U.S. National Oceanic and Atmospheric