In the United States, the climate change policy stands on the side of global warming and its impact on the future of the planet. Politicians, media, and volunteers disclose the problem of coming changes due to the greenhouse effect. However, it is hard to estimate the actual impact of global warming and identify the true reasons for temperature increase. Possibly, these processes are consequent and expected changes mostly initiated by nature. Assessing the current climate is hard due to limited knowledge about the parameters of the climate a long time ago.
The government of the U.S. supports climate change policy and might be interested in some other aspects. For instance, providing research in the Arctic area allows us to gather knowledge about the land and use the outcome of the research for various political goals. Taking away the attention of people from some major issues by developing a modern concern for environment care and nature protection. Humans might be more concerned with damaging nature, polluting the air, and preventing the effects of global warming than about tax or migration legislation inside the state.
It is hard to estimate the true changes humanity makes to the climate and environment in general due to complications of calculations, limited knowledge of the previous condition of the climate, and the credibility of implemented research. The most proper decision will be taking care of the environment but saving critical thinking and double-checking the parameters of the research, its p-value, and shortcomings.