The truth of the Eucharist and of warming are different realms."

You're right, one is true and the other is false.  I believe the One that said  - "This is my body, this is my blood."  If He can provide himself in each piece of bread and drop of wine around the world day after day, having raised from the dead, I am confident that His Father knew what He was doing when He created the world and all life in it dependent on two things - Oxygen and Carbon Dioxide.   No where does Jesus warn us about "warming;" that is a man-made fallacy intended to deceive people for purposes of human ambition, detracting from God, and elevating man.  Even the professor who got Al Gore started on this campaign has come out against what he once believed, as well as the  co-founder of Green Peace.