A new study finds that human-caused climate change dialed up the heat and drastically increased the odds of this month’s killer heat that has been baking the Southwestern United States, Mexico and Central America. World Weather Attribution, which is a collection of international scientists, calculates that global warming is making sizzling daytime temperatures in this heat wave 35 times more likely and 2.5 degrees hotter. And it really hits hard at night, making dangerous nighttime heat 200 times more likely and 2.9 degrees warmer than if there were no climate change. A new study finds that human-caused climate change dialed up the heat and drastically increased the odds of this month’s killer heat that has been baking the Southwestern United States, Mexico and Central America. World Weather Attribution, which is a collection of international scientists, calculates that global warming is making sizzling daytime temperatures in this heat wave 35 times more likely and 2.5 degrees hotter. And it really hits hard at night, making dangerous nighttime heat 200 times more likely and 2.9 degrees warmer than if there were no climate change. AP Technology and Science