A roundup of news snippets
• On Saturday at 8:00 p.m., cities and businesses around the world will turn off their lights for Earth Hour.
• Canada’s annual seal hunt kicked off today.
• Today is also the 29th anniversary of the meltdown at Three Mile Island.
• The U.S. EPA will reopen five closed libraries this fall.
• Parkinson’s disease is linked to pesticide exposure.
Get Grist in your inbox