Life in the United States will be increasingly altered by the effects of climate change, a landmark US government report has warned.

Produced every four years, the National Climate Assessment is compiled from reports produced by more than a dozen government agencies and departments.

"Climate change is transforming where and how we live and presents growing challenges to human health and quality of life, the economy, and the natural systems that support us," the report says.

That includes worsening air pollution causing heart and lung problems, more diseases from insects, the potential for a jump in deaths during heat waves, and more debilitating allergies.

This year's report, issued on Friday, will be uncomfortable reading for President Donald Trump, who has repeatedly dismissed warnings of the dangers.

On Thursday he tweeted: "Brutal and Extended Cold Blast could shatter ALL RECORDS - Whatever happened to Global Warming?"