“This summer has been the hottest in recorded human history. It may also be the coolest summer we’ll ever enjoy again. That’s nearly impossible to imagine in places that already are suffering under extreme effects from global warming — places like Phoenix, Arizona. The broiling desert city has endured 24 consecutive days above 110 degrees Fahrenheit, a record. Sunday morning marked the 14th straight low above 90, also a record. Last Wednesday the low was a miserable 97F, yet another record. An unbudging heat dome over the southern US kept the city in a pressure cooker and delayed the relief of monsoon season by more than a month. The urban heat-island effect of city development compounded the misery. … ”  Read more from the Washington Post.

Mexico steps up rain-making project amid intense heatwave and drought

“Amid a historic heatwave and months of drought, Mexico’s government has launched the latest phase of a cloud seeding project it hopes will increase rainfall.  The project, which began in July, involves planes flying into clouds to release silver iodide particles which then, in theory, will attract additional water droplets and increase rain or snowfall.  Cloud seeding in Mexico is “combatting the effects of drought in rural areas and contributing to refilling aquifers”, says the agriculture ministry, which has been carrying out cloud seeding at least once a year since 2020. The government has claimed significant success, saying the project was 98% effective and even helped extinguish forest fires in 2021.  But Mexico’s leading cloud physicists have cast significant doubt on the viability of the technology and experts across fields warn against simple solutions to the effects of climate change. … ”  Read more from The Guardian.