Umair Irfan
Former correspondent
Latest articles by Umair Irfan
Scattering aerosols in the sky would cool the planet, but it would block crucial sunlight for plants.
Humans are increasing wildfire risks, but “bad environmental laws” aren’t the problem.
Some climate scientists are pleased that Kelvin Droegemeier will advise the president if confirmed.
It’s not a record-high temperature that necessarily makes a heat wave dangerous. It’s whether you can cool off.
Extreme heat has already killed several outdoor workers this summer.
A loophole for dirty “glider” trucks is closed for now. But the EPA is still trying to weaken regulations for them.
Athletes are using new technologies and exploiting gray areas in doping rules to boost their performance.
In Sweden, Latvia, and Greece, wildfires are spreading amid a brutal heat wave.
Pruitt secured a loophole for dirty glider trucks after he announced his resignation.
Costa Rica is moving toward carbon neutrality faster than any other country in the world.