Climate fluctuations will happen regardless of whether we do anything to cause warming/cooling. We need to focus on protecting ourselves from it by using more energy... because both heating and cooling our living rooms and cars requires energy... and make artificial heating/cooling accessible to more and more people... regardless of whether or not our activities warms up or cools down the earth.

Why we are focusing on what happens to the overall earth's climate makes zero sense to me... I'm sure it is entirely political and it is a fight between few rich corporations and political powers where everyone has been dragged into. Climate will change very drastically like it has done in the past, with or without human activities. We should be working on how to save ourselves from changes in the future... not desperately trying not to breathe too hard which might cause some tsunami in another part of the world (butterfly effect)... specially because nobody can correctly predict if it will.

People do lots of hand wringing about climate change but really we could and surely will just do what you say and protect ourselves from whatever comes. Air conditioners where it becomes too hot, sea walls where storm surges become too frequent, irrigation where rainfall is reduced, moving people around where arable land moves, etc. We already do all these things on a massive scale. They're nothing unrealistic.