A new Pew Research Center survey finds a majority of Americans think climate change is causing harm to people in the US and 63% expect things to get worse in their lifetime. When it comes to the personal impact, most Americans think they’ll have to make at least minor sacrifices over their lifetime because of climate change, but a relatively modest share think climate impacts will require them to make major sacrifices. The Center survey of 8,842 U.S. adults conducted Sept. 25-Oct. 1, 2023, finds that 43% of Americans think climate change is causing a great deal or quite a bit of harm to people in the U.S. today. An additional 28% say it is causing some harm. Looking ahead, young adults ages 18 to 29 are especially likely to foresee worsening climate impacts: 78% think harm to people in the U.S. caused by climate change will get a little or a lot worse in their lifetime.