Climate Change. It's Real.

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Originally Posted by glatt

Should we try to fix it?

More like hedging our bets on the cross section between fixing and and surviving it:

Renewable energies could be a huge push towards the ability of a lot of countries to go on functioning even if the actual climate - or possibly the resulting political climate - doesn't allow a continues exchange of oil, coal and gas. More and more countries, cities and even households being able to function independently if the grid or economy breaks down is going to be crucial.
Electric vehicles are also a potentially important move towards that, though different places might need to adapt the types of batteries we produce.
There are several programs working on the use of drones to send medical supplies and goods to far away regions in Africa - these could also be a huge bonus in the west in times of needs.
3D printing and robotics can make huge step towards more localized industrial independence as well as reduce energy consumption on global trade, and likewise for vertical farming and agriculture.
Perhaps most important of all, uploading and copying to multiple servers more and more of the body of humanity's accumulated knowledge and intellectual work, on this thing called "the internet". All of the rest are tools that can allow civilization a sturdier foothold in times of crisis, but this one is the one that makes sure that whatever survives will almost certainly have a much better starting point, including not only the intellectual benefit, not only the technical knowledge, but the published research on climate change leading to the crisis in the first place, the history behind it and all the mistakes they'd hold us responsible for and hopefully strive to not repeat.

...Also while we're at it, we should make sure to prank them and give Sherlock Holmes a documented birth certificate.