Recent droughts and associated heat waves have reached record intensity in some regions
of the United States; however, by geographical scale and duration, the Dust Bowl era of the …

The location, timing, spatial extent, and frequency of wildfires are changing rapidly in many
parts of the world, producing substantial impacts on ecosystems, people, and potentially …

Carbon release from thawing permafrost soils could significantly exacerbate global warming
as the active‐layer deepens, exposing more carbon to decay. Plant community and soil …

The Arctic may seem remote, but the unprecedented environmental changes occurring there
have important consequences for global society. Of all Arctic system components, changes …

Fire is an integral component of the Earth system that will critically affect how terrestrial
carbon budgets and living systems respond to climate change. Paleo and observational …

Fire regime characteristics in North America are expected to change over the next several
decades as a result of anthropogenic climate change. Although some fire regime …

Reconstructing climates of the past relies on a variety of evidence from a large number of
sites to capture the varied features of climate and the spatial heterogeneity of climate …

Air pollution in the Arctic caused by local emission sources is a challenge that is important
but often overlooked. Local Arctic air pollution can be severe and significantly exceed air …

Acting as a top-down control on fire activity, climate strongly affects wildfire in North
American ecosystems through fuel moisture and ignitions. Departures from historical fire …

Tree-ring records can provide valuable information to advance our understanding of
contemporary terrestrial carbon cycling and to reconstruct key metrics in the decades …