Answer:
1. Capitalize the name of the country.
2. Remove the all caps for "do not."
3. Change the informal "you" pronoun to agree with the subject 'people.'
4. Change the exclamation point to a period.
5. Eliminate the contraction for "don't."
6. Replace the word 'impact' for 'effect.'
Thus, .....
Some people in the United States do not care about the environment because they do not see the effects of pollution.
Explanation: