As the people of Kauai continue to recover from a devastating storm, some scientists are warning that this was something new: the first major storm in Hawaii linked to climate change.
You won't need any reminder that it's summer in the national park. The heat wave that's settled over the Southwest has already brought 120-degree readings, which will likely be surpassed this week.
According to the National Weather Service, 36.5 million residents, 98% of Californians, are under a heat advisory Friday as a high-pressure system broils the state from the Oregon to Mexico borders.
Dozens of flights out of Phoenix, Arizona, have been cancelled because of extreme heat.
Southern California went 87 days without a clean air day, the longest stretch of consecutive ozone pollution violations in at least 20 years. Regulators blame the persistence in pollution on hot, stagnant weather and are studying whether climate change is driving it.
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