Researchers theorize that a 2016 heat wave exposed the carcass of a reindeer that was infected with anthrax from 75 years earlier. Melting permafrost in russia's arctic regions could release ancient and potentially deadly viruses and bacteria, the government has warned. Many people depend on snow to provide water when it melts in the spring, including millions of people in the western united states, where snowmelt provides 75 percent of the water supply.

Some plants and animals also. Using lake sediment in the tibetan plateau, a team of. From rising atmospheric levels of greenhouse gases to melting icesheets and thawing permafrost, there's a very real sense that we're running out of time to tackle some of the most pressing impacts.

The united nations environment programme (unep) characterizes the circumpolar arctic as the world's climate change barometer. Snowfall is an important aspect of winter in much of the united states. Permafrost is soil or sediment that remains frozen for 2 or more consecutive years.

Permafrost is melting with rising arctic temperatures and changing how people must interact with nature. Nikolay korchunov, a senior russian diplomat who chairs. The release of the airborne toxin killed the child and 2,000 deer within a matter of weeks.