The annual list of America’s Most Endangered Rivers includes practical calls to action to turn the tide on threatened U.S. waterways.
Climate Change
Understanding the Importance of Salt Marshes
Hydrological processes affect plant ecology and the biogeochemical exchange between salt marshes and the sea.
Incredible Journeys on the Crown of the Continent
Living in Geologic Time: The making, breaking, and backpacking of North America’s Continental Divide.
Less Air Travel May Partially Contribute to Global Warming
Decrease in aircraft soot emission, as shown by COVID-19 lockdown, leads to a significant increase in ice crystal number in cirrus clouds, and results in a small global positive radiative effect.
U.S. Fires Quadrupled in Size, Tripled in Frequency in 20 Years
Changes including intensifying drought, expansion into burnable land, and an increase in human-caused ignitions have led to a shift in fire patterns.
Could “Lost Crops” Help Us Adapt to Climate Change?
Archaeology might not solve all the agricultural challenges that climate change will bring, but it could provide important lessons and a record of new ideas.
Unhealthy Air Could Become Routine in the Pacific Northwest
If the world stays on fossil fuels, fine particle pollution from wildfire smoke could more than double in the late summer to early fall in the U.S. Pacific Northwest by 2100.
Higher Sea Surface Temperatures Could Lead to a Weaker Monsoon
Most climate models predict that the South Asian monsoon will strengthen with climate change, but new research indicates warmer ocean temperatures may lead to a drier phenomenon.
Satellites Reveal Slow Shift of the Entire Boreal Biome
According to a new study, warmer temperatures and high soil nitrogen levels are causing Earth’s largest land biome to advance northward.
Chronicling the Hottest, Coldest, Windiest, and Rainiest Weather
The World Meteorological Organization verifies and documents record-setting temperatures, winds, lightning, and more, offering snapshots of Earth’s extremes and hints about its changing climate.
