As I've stated many times on various forums, it's the increase in the human population that will kill the planet.
normal body temperature is 37 deg c, so 7.7 billion human heaters.
Most have a shower every day, so 7.7 billion 15min showers at an average 43 deg c.
Then add the 7.7 billion plus uses of average 60 deg c hot water to clean clothes.
Plus the 2.6 billion car journeys made each day with engines at 80 deg c, brakes at 40 deg c & that's just cars!
plus heaters, oxy /acetylene/propane gas/mapp gas cutting gear.
hot meals, drinks.
Electrical items like radios, TV's, freezers, computers, etc.,
All of this heat has to go somewhere, oh hello sea, sky & earth.
As a footnote. A few years ago I did a few weeks of research into the governments pollution statistics & the connection with dying prematurely, after much searching, the average person living in London, lives to 74 years old but, only 273 die as a direct result of all pollution in the greater London area.
the average reduction in a Londoners life expectancy is 3 months!
I've also noticed that when academic institutions did in depth studies on diesel particulate filters, the early ones were quickly removed by persons unknown!
Phill