Physicists are fond of Gedankenexperimente—thought experiments that are difficult or impossible to perform in the real world. Schrödinger’s cat is a well-known example of a thought experiment, used to ...

Companies are coming up with plans to block out the sun - Private companies are jumping into the race to deploy particles to ...

When engineers and planners design roads, bridges and dams, they rely on hydrological models intended to protect ...

And governments would still confront the same physical, engineering, and economic constraints that no treaty can repeal. That ...

A short walk beneath the dense Amazon canopy, the forest abruptly opens up. Fallen logs are rotting, the trees grow sparser, and the temperature rises in places sunlight hits the ground. This is what ...

GRAND RAPIDS, Minn. — The forest about a half hour north of Grand Rapids is quiet, with a narrow dirt road winding between tall trees. A small sign reading "Marcell Experimental Forest" is the only ...

As the climate warms and nutrient inputs shift, algal communities in cool, clear mountain lakes like Lake Tahoe will likely experience seasonal changes, according to a study from the University of ...

Dr. Victor is a professor of innovation and public policy at the University of California, San Diego, and a nonresident senior fellow at the Brookings Institution. On its face, 2025 looks like a year ...

Climate change also alters nitrogen in soils and plants, shaping food quality, water safety, and pollution risks worldwide.