Scientists from the University of Sheffield will warn policymakers that the shrinking glaciers of the Andes threaten the water supply of 90 million people on the South American continent at the first-ever World Day for Glaciers hosted by UNESCO in Paris.

People generally try to make other people feel good about themselves, but not when they dislike them. That’s the finding of a new study by psychologists at the Annenberg Public Policy Center investigating the extent to which people promote “positive self-views” for total strangers.

Researchers analyzed three decades of sanctions on foreign aid to assess their impact on health. They hope the work can help government officials better understand and address how foreign policy decisions affect the well-being of local populations.

The American Geophysical Union and the U.S. Academic Alliance for the IPCC today open calls for U.S. researchers to self-nominate as experts, authors and review editors for the Intergovernmental Panel on Climate Change Seventh Assessment Report through a new application portal. USAA-IPCC is a newly established network of U.S. academic institutions registered as observers with the IPCC, and empowered to nominate experts for roles in IPCC reports. USAA-IPCC aims to increase awareness of authorship calls and facilitate nomination opportunities for experts in climate research and practice working in the United States.