Earth’s concentration of atmospheric carbon dioxide (CO2) has hit a threshold not seen in at least 3 million years, after a record annual increase in 2016.
Air pollution (smog) from vehicles is one of the environmental problems posed by motorized tansport ; It is more and more common in large cities of Asia and Southeast Asia. Photo taken August 10, 2005 in Kuala Lumpur (Malaysia)
Ocean Sentry