Its a combination of corporate greed, and a voter base that doesn't have the benefit of their own senses to guide them to the correct conclusion. Many "red" states are in areas where the climate is NOT warming as much as the rest of the world.

Here is a history of global temperature anomalies over the past few months.

2015_08 2015_07 2015_06 2015_05 2015_04 2015_03 2015_02 2015_01 2014_12 2014_11 2014_10 2014_09 2014_08 2014_07 2014_06 2014_05 2014_04 2014_03 2014_02 2014_01

View more data at https://www.ncdc.noaa.gov/sotc/