Climate change claim questioned

Robert Petersen (Daily Inter Lake, Jan. 31) writes “Look east at the glaciers that are no longer there,” to support his belief our CO2 causes global warming. He does not understand cause and effect.

He assumes the almost linear decrease in Glacier Park glaciers since 1830 means our SUVs caused the decrease. Sorry, effect cannot precede the cause. Nature causes glacier change, not our CO2.

He assumes today’s temperatures are the highest in thousands of years. Sorry. Not even close.

He assumes warmer weather proves our CO2 caused it. Sorry. Effects do not prove their cause.

He writes, “Educate yourself.” Yes, indeed. Start with good data. Use good science to determine cause and effect. You will find that nature, not our CO2, drives climate. —Ed Berry, Bigfork