the united states

Protected Areas and National Parks in Canada and the United States
Unesco Scientific, Educational and Cultural Organization has recognized Protected Areas and National Parks: Kluane, Wrangell-St. Elias, Glacier Bay, Tatshenshini-Alsek of Canada
June 11: USS Missouri's last battleship is put into operation, where the World War II ends
On this ship is also the site of the Japan Empire's unconditional surrender document, ending World War II.
Pollution in China may affect US weather
In place of the US position, China has recently become the world leader in CO2 emissions.