Pointing the finger at corporations is shifting the blame from the individual to the group. This is not a supply problem, it's a demand problem. Humans love to place the blame on others.

If no one wanted to fly or worse go on cruises, the corporations providing those would not exist. Corporations don't mine coal or turn oil into plastic for fun, they turn them into products which consumers demand. It's childish to say that corporations need to have more accountability. We all need to make the right decisions and have accountability, corporations live for profit, individuals create the demand and work for corporations.

Blame McDonald's for making you overeat, Marlboro for making you smoke, Nike for making you buy 40 pairs of shoes, Disney for making you watch 8 hours of TV in a row, Steemit for making you blog. It's ridiculous.

Have accountability and if you care, avoid burning carbon. Society at large has to change. Air-travel may count for a small amount of pollution but what about the taxis we take to the airport, hotels, take-away food, entertainment, etc. Humanity needs to stop measuring success with material wealth, conspicuous consumption and overindulgence. Forget focusing on CO2, focus on greed.