New researchshows industrialmining threatens up to one-third of Africa's great ape population, Ben writes.
Why it matters: Growing amounts of minerals — like copper, cobalt and nickel — that are used in climate technology bring their own challenges to biodiversity.
Why it matters: The Earth's atmosphere now contains more planet-warming gases than it has at any other point since at least about 4.3 million years ago.
The biggest urban experiment in decades is coming to New York City in June, when vehicles will be charged $15 and up to drive in Manhattan below 60th Street.
Why it matters: It's a first-in-the-nation policy that other American cities — like Seattle, San Francisco and Washington, D.C. — might be eager to replicate.