It's not really the pipelines that are the problem. It's the stuff that's being pumped thru them. Safety will be adversely affected regardless of how these fossil fuels are transported, as the climate warms and the crops fail. CO2 may benefit plant growth to some extent, but the benefit of the influx has it's limits, and the resulting heat stress and extreme weather is already causing a problem for farmers in some areas. The climate has always changed, but now because of our collective actions, which transcend party lines, it's changing at a pace that will challenge our ability to adapt. By the time deniers come to recognize this, (and there is a spectrum of denial because liberals who believe climate change is real still don't seem to think our lives will have to change significantly) it will be too late to address, as C02 stays in the atmosphere for decades up to thousand(s) of years. Thanks for spreading info regarding man made climate change.