Data centers are factories without smoke stacks, they are voracious consumers of energy and since "cloud" everything computing is the name of the game at least for medium term, tech companies would do a favor if they focus on tackling the datacenter related issue.

Also chip fabrication is a dirty dirty dirty business, as the consumers of the computer hardware, we as an industry has responsibility to pollution reduction of this process.

Planting trees is good, giving aid money is good, but cleaning your own shit is better!