<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Why did Biden shut down the Keystone Pipeline?
<|assistant|>
Biden shut down the Keystone Pipeline due to environmental and safety concerns. The pipeline would have crossed the border into Nebraska, but the Obama administration did not approve the route over concerns that it could lead to a spill of the potentially hazardous liquid. Shutting down the pipeline also served to demonstrate Biden's commitment to the Paris Agreement, as it would have been contrary to the accord had it been approved.