Why the Keystone Pipeline is bad for the environment?

Keystone Pipeline
Once operational, the 875-mile Keystone Pipeline expected to carry 830,000 barrels of crude oil every day from Canada’s Alberta Tar Sand reserves to refineries near Houston, will impact the environment badly. The changes will lead to: Warmer winter temperature. Short time of cool season. Longer period of frost season. An increase in soil contraction and expansion. Warm and longer summers which...