The United States now accounts for almost four out of every five coronavirus vaccine doses given across the Americas. But with the improved inoculation rollout, many poor countries are falling behind. And, a growing number of European nations are suspending use of AstraZeneca’s COVID-19 vaccine because of reports of dangerous blood clots. That’s despite the fact that international regulators haven’t produced evidence showing that vaccinations are to blame for the clots. Also, a new study shows human-caused forest degradation has made large swaths of the Amazon Rainforest a net emitter of greenhouse gases.