The verdict on climate change from the G20 summit is in — somewhat. After two days worth of talks in Rome, world leaders released a joint statement, agreeing "meaningful and effective" action is needed "by all countries" to prevent global temperatures from reaching more than 1.5 degrees Celsius, as previously set forth by the Paris Agreement. ... United Nations Secretary-General António Guterres, meanwhile, tweeted he left Rome with his hopes "unfulfilled," though stated he welcomed the "recommitment to global solutions." UK Prime Minister Boris Johnson said only 12 of the 20 G20 members committed to the 2050 pledge, adding the...