The U. S. Weather Bureau has a station on Mauna Loa in Hawaii that has measured carbon dioxide levels since 1959. At that time, there were 301 parts per million of carbon dioxide in the
atmosphere. In 2005, the figure was 377 parts per million. Find the increase in carbon dioxide levels
and the percent of increase, to two decimal places.
Increase carbon dioxide levels:
parts per million
Percent increase: