Answer:
Obama:
- Established the largest marine reserve in the world.
- Rejected the Keystone XL oil pipeline.
- Established the largest ocean sanctuary on the planet.
- Raised fuel-efficiency standards.
- Unveiled the Clean Power Plant.
- Established America's Great Outdoors Initiative.
- 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.
Step-by-step explanation: