List the main environmental policy accomplishment of each president.

George w. bush

Barack Obama

He authorized a 700-mile-long fence along the US border with Mexico.

Obama:

- He established the largest marine reserve in the world.

- He rejected Keystone XL oil pipeline.

- He established the largest ocea sanctuary on the planet.

- He raised fuel-efficiency standards.

- Unveiled the Clean Power Plant.

- He established America's Great Outdoors Initiative.

- He invested in green energy during the Great Recession.

- Started a plan to save bees and pollinators.

Bush:

- Encouraged and promoted the conservation of natural resources.

- Preserved the National Parks and Community Heritage.

- Preserved the oceans.

- Protected fish and birds.