@CNN: More than 16,000 scientists have signed a dire warning to humanity advising that we need to fix our environmental problems now to help the planet https://t.co/lHtsnhp8Yp https://t.co/TeKoxn3sBY

@CNN: More than 16,000 scientists have signed a dire warning to humanity advising that we need to fix our environmental problems now to help the planet https://t.co/lHtsnhp8Yp https://t.co/TeKoxn3sBY