At a Glance Warmer temperatures and changing wind patterns affect how planes take off.The study looked at 60 years of weather and transportation data.Airlines and airports may have to make adjustments, researcher says. Climate change is making it harder for planes to get off the ground, a new study says. “Warm air and slow winds make it harder for planes to get off the ground, and climate change appears to be making both of these factors more common," Paul Williams,...

Climbers on Mont Blanc in 2016. (PHILIPPE DESMAZES/AFP via Getty Images) At a Glance At least 20,000 people attempt to summit Mont Blanc each year.It's the highest peak in Western Europe.Warmer temperatures are making the climb more hazardous. More restrictions will be placed on climbers hoping to scale Mont Blanc in France amid mounting concerns over environmental impacts and the effects of climate change. French President Emmanuel Macron announced the Thursday during a visit to Chamonix near Mont Blanc in...

The U.S.-Mexico border between Tijuana and San Diego County is seen from Tijuana, Baja California State, Mexico, on Dec. 26, 2018. (GUILLERMO ARIAS/AFP via Getty Images) At a Glance The women got lost amid cold temperatures and snow in the Laguna Mountains.They, and two men with them, were suffering from hypothermia, officials said.The two men were arrested. Three women who crossed from Mexico into the United States died Monday during a winter storm in the Laguna Mountains of Southern California....