With the backing of science, economics, clean energy leaders, local businesses, and the vast majority of Americans, the Obama administration permanently protected most of the Arctic Ocean and a
chain of deep sea canyons in the Atlantic Ocean, stretching
from the Chesapeake Bay to Canada's border,
from dangerous and destructive offshore oil
drilling.
Further evidence for the difference between methane
from water wells near active
drilling sites and neighboring nonactive sites is the relationship of methane concentration to δ13C - CH4 values (Fig. 4A) and the ratios of methane to higher -
chain hydrocarbons versus δ13C - CH4 (Fig. 4B).