The 20th annual Arctic Report Card reveals new highs in temperature and new lows in sea ice, as well as an uncertain outlook for the availability of federal data.
monitoring networks
California Schools Are Feeling the Heat
Even though trees help keep children safe from the Sun, some school districts have lost 25% of their tree canopy in just 4 years.
When Does Rainfall Become Recharge?
Counting drips in caves is helping to reveal how much precipitation is needed to start refilling underground aquifers.
Tracing Fire, Rain, and Herbivores in the Serengeti
Increasing amounts of rain fuel grass growth across the ecosystem and, consequently, the cycles of wildfire and animal migration.
The Land Beneath Antarctica’s Ice Might Be Full of Water
Seismic surveys hint at the extent of a potential groundwater system in the White Continent.
Global Methane Emissions Projected to Fall, According to United Nations Report
The world has made significant progress on methane mitigation since 2020, though meeting the goals of a major international pledge will require additional action, according to a United Nations Environment Programme (UNEP) report.
The Ridgecrest Earthquake Left Enduring Damage in Earth’s Deep Crust
The shallow crust has recovered since California’s 2019 quake, but damage persists at depths greater than 10 kilometers.
Marine Heat Waves Slow the Ocean’s Carbon Flow
When plankton find themselves in hot water, organic matters stalls at the surface and disrupts transport of carbon to the deep ocean.
Building Better Weather Networks
A lack of weather data often leaves African communities vulnerable. Convergent efforts to improve observational networks throughout the continent are slowly filling the gaps.
A Better Way to Monitor Greenhouse Gases
A unified, global observing system could more effectively monitor progress in reducing emissions and accelerate climate action through improved data and decision support.
