Bill Nye took to Twitter to blame man-made global warming for flooding across Northern California that claimed at least three lives over the weekend. Nye, who rarely misses a chance to link extreme weather to human activities, suggested California’s flooding meant we’d be better off not pulling out of the United Nations Paris agreement to cut greenhouse gas emissions. President-elect Donald Trump promised to “cancel” the Paris agreement the Obama administration signed in 2016. The Senate never voted on the agreement.