Earth Day is right around the corner. It's a time when we celebrate our connection to the Earth and work to protect it by doing things like cleaning up trash or planting trees.

All of that is especially pertinent now given all the signs of our changing climate — something many Americans are feeling increasingly anxious about.

A 2021 survey by the medical journal The Lancet Planetary Health found that 59% of respondents worldwide aged 16 to 25 said they were very or extremely worried about climate change.

“It's a really concerning statistic to see, especially since this was a global survey,” said James McKowen, a clinical psychologist at Harvard Medical School and Massachusetts General Hospital. He centers his work around climate change and youth mental health.

“Young people are bringing this to our clinical space, sharing their anxieties, sharing their worries about the future and it’s getting in their way of sleep sometimes, and concentration.”

That’s true for older adults, too: McKowen cited a study from the Yale Center for Climate Communication, in which 70% of American respondents think climate change will harm future generations.

“You'll see just a lot of existential anxiety, worry, difficulty focusing at times, being preoccupied with news, doomscrolling, really getting stuck in disasters and wildfires,” he said. “And then we've experienced some of that locally as well. I think that impacts our sense of worry about the future, particularly if we have children.”

Climate anxiety and eco-anxiety are not mental illnesses or formal diagnoses, McKowen said.

“It's actually what we think about as a normal reaction to the unfolding crisis,” he said. “At the same time, for some people, it can morph into real preoccupation, getting in their way of focusing and can be much harder to kind of go on in their day to day.”

There are things that can help, he said: Learning about what is happening in one’s mind and finding people to talk to, including strong communities and a climate-aware therapist.

He also suggested getting involved.

“We know being involved in nature restoration, plantings, activism, emailing your senator, you're protesting at climate-aware events — that can really help with a lot of this stuff as well,” he said.

Being out in nature regularly can help too, he said.

“We know that trees are beneficial for our mental health through things that they emit, the air we breathe. It's cooler there. It's green. It restores our attention fatigue that we struggle with every day,” he said.

He left with an affirmation: “Nature brings hope.”

“I believe it,” he said. “I go to a forest. I love it there. It brings me hope to see the spring flowers coming, or planting a native plant makes me feel really good.”

He also recommended a few books for people who want to learn more about climate anxieties and how to deal with them: