From 538 Significant Digits:
Ethiopian officials say that volunteers in the country planted more than 350 million tree seedlings in 1,000 sites in just 12 hours in a day. It was a mass effort to counter deforestation and climate change. The world record for single-day tree-planting had been held by India, where 800,000 volunteers planted more than 50 million trees in 2016. [BBC]
Especially wonderful to read against news that Brazil is gutting the Amazon.