Python -O won’t magically make every script faster, but in the right workloads it’s a free win—here’s how to test it safely.

The Environmental Protection Agency rejected the bedrock scientific finding that greenhouse gases threaten human life and well being. It means the agency can no longer regulate them. By Lisa Friedman ...

A new state law gradually bans the use of horseshoe crabs for bait and medical purposes, with a full ban by 2029.