The Trump administration says it will soon publish a proposal that, if upheld in court, would erase the very foundation of U.S. climate regulations. It would revoke what’s known as the endangerment finding – an official determination that greenhouse gas emissions are a threat to human health and welfare.

The Trump administration’s many efforts to eliminate climate regulations, and its decision to pull the U.S. out of the Paris climate agreement, left many wondering: What does this mean for the rest of the world? Every country is facing the damage that comes with climate change. So who is leading the way now as U.S. leadership on protecting the climate disappears?

Shannon Gibson explains what she’s seeing from other countries, states and companies, and which governments are using this opportunity to increase their global influence.

Many people get labeled as being allergic to penicillin as children, when they get a rash after taking it. But these assessments are often incorrect – and even when they aren’t, the vast majority of people lose their allergy to penicillin within a decade. Elizabeth W. Covington sets out why 10% to 20% of Americans report that they have a penicillin allergy, yet fewer than 1% actually do.