The report found that climate change will cost the United States hundreds of billions of dollars annually and damage health.
Trump said other countries must take measures to cut their emissions.
According to the report, released Friday, "with continued growth in emissions at historic rates, annual losses in some economic sectors are projected to reach hundreds of billions of dollars by the end of the century - more than the current gross domestic product (GDP) of many U.S. states".
Trump suggested there was little point in the United States addressing its greenhouse gas emissions if "all of these other countries" - including high emitters such as China and Japan - fail to reduce theirs in step.
"Right now we're at the cleanest we've ever been and that's very important to me". And that's very important to me.
Black Friday report shows climate change already very expensive in US
The Fourth National Climate Assessment is the work of more than 300 experts including those with government agencies, national laboratories, universities and indigenous communities.
The report supplements a study issued past year that concluded humans are the main driver of global warming and warned of catastrophic effects to the planet.
The world's leading scientists agree that climate change is human-induced and warn that natural fluctuations in temperature are being exacerbated by human activity.
The report, written with the help of more than a dozen USA government agencies and departments, said the effects of climate change would harm human health, damage infrastructure, limit water availability, and alter coastlines.
Trump has long said he distrusts the consensus by almost all the world's respected climate scientists on the link between human activity and rising temperatures, as well as other damaging climate change phenomena.
The report also said projections of damage could change if greenhouse gas emissions were curbed, although numerous impacts of climate change, like powerful storms, droughts and flooding, have already begun.
Sarri optimistic Hazard will sign new Chelsea deal
But we decide to give him this continuity, which I think it is clear that it has improved him by his physical qualities. I think we played very badly in all directions - physically, mentally, technically and tactically.