ENVIROMENTALISTS want Obama to block airline emissions trading protest.

"On behalf of our millions of members and supporters, we strongly urge you to reject the airline industry’s pressure to file an Article 84 action in the International Civil Aviation Organization (ICAO) challenging the European Union’s Aviation Directive, which holds airlines accountable for carbon pollution from flights landing at or taking off from European airports," the groups wrote in a letter to Obama.

The "millions of environmentalists and supporters" would have more effect if they would simply quit traveling by air.