Science News! Let’s take a look at some of the important developments in science this week…
First, carbon dioxide levels in the atmosphere jumped by the largest amount on record in April, a rise that was amplified by El Nino. Even without the effect of El Nino, carbon dioxide levels have been increasing at a progressively faster pace in recent years. Read more from the Washington Post here.
Second, on Tuesday a brilliant meteor was seen falling over the Northeastern U.S. as an object likely between the size of a basketball and a shopping cart entered the atmosphere. A Maine museum is offering a $20,000 reward for a sizeable chunk of the object if found. Read more from Space.com here.
Third, trees have been observed “resting” their branches at night for the first time, a phenomenon that could be likened to sleep. Researchers used lasers to determine that birch tree branches drooped by as much as ten centimeters over night and returned to their original positions by day. Read more from New Scientist here.