Global climate change really benefits the energy companies

I have long been aware that Big Oil. and Big Coal, and Big Gas have denied global warming (aka climate change) because they don't want to incur the expense required to reduce their pollution and contribution to the problem.  But today, in Chicago, I see another benefit for them.  I live in Chicago.  Yesterday, I had my heat on, as the temperature was about 50 degrees.  Today it was 90 degrees and I had to turn on my air conditioner.  Spring used to be a time were you didn't have to pay for heat or cooling.  But with the drastic shifts in temperature, we'll have to pay the gas company or the electric company (and their suppliers) every day.  We should put solar on every roof, windmills in every field, and stop killing our planet to line the pockets of the very few.