Ecosystems
The Amazon is in trouble. Here’s why — and why it matters
Challenges from human-caused climate change, deforestation and degradation leave the fate of this vast forest uncertain.
By Nikk Ogasa
Climate
More Stories in Climate
-
ClimateLet’s learn about why summer 2023 was so hot
Human-caused climate change has played a big role in this summer’s historic heat.
-
OceansSummer 2023 is when the ocean first turned ‘hot tub’ hot
Unfortunately, scientists worry that this atypical sea warming may actually be the beginning of an unwelcome new ‘normal.’
-
TechGravity ‘batteries’ might help a weighty renewable-energy problem
To store the energy generated by wind and solar power, researchers are looking at mammoth systems that raise and lower weights.
-
TechHigh-tech solar ‘leaves’ create green fuels from the sun
Chemists make a liquid alternative to fossil fuels from carbon dioxide, water and the sun. Their trick? They use a new type of artificial leaf.
-
EarthCanada’s Crawford Lake seems to mark when the Anthropocene began
Mud at the bottom of this lake holds a record showing how humanity has been changing our planet. But the Anthropocene isn’t an official new epoch yet.
-
PhysicsExplainer: What is chaos theory?
Chaos can help scientists explore subjects from climate change to human brains. Learn about the theory behind this field of science.
-
ClimateExplainer: What is an atmospheric river?
These long-traveling storm systems bring moisture to many parts of the world. Here’s what scientists are learning about them.
-
ClimateFor greener toilets and air conditioning, consider saltwater
Using saltwater would allow coastal cities to save their freshwater for drinking and to reduce their carbon footprints. Some could save money, too.
-
TechNew technologies could keep people cool in a warming world
New approaches to air conditioning aim to keep people cool with fewer greenhouse-gas emissions as our world warms.