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Good morning.

Here’s what you need to know:

We’re not ready for climate change

• Globally, 2018 is shaping up to be the fourth-hottest year on record. (The hotter years were the three previous ones.)

The disruptions to everyday life have been far-reaching: wildfires in California, dozens of heat-related deaths in Japan, a heat wave on four continents that has taken a toll on crops and the electricity grid.

For many scientists, this is the year they started living climate change rather than just studying it.

“It’s not a wake-up call anymore,” a scientist at the NASA Goddard Institute for Space Studies said of global warming. “It’s now absolutely happening to millions of people around the world.”