Forces in Ethiopia’s northern Tigray region seized three airports this week, only a few days after seven armed and political groups formed an alliance against the government. Also, climate control for art and artifacts accounts for a large share of museum carbon emissions, so museums are introducing new protocols to cut emissions while still protecting their collections. And, a new free database now holds nearly 4 million records of people enslaved in British colonies from the Caribbean to South Africa in the early 1800s. Plus, what’s next for Nepal?