No, "starting small" and other consumer side activism are tools actively pushed by oil companies in order to make you believe you are making a difference; so that we don't pursue actual hard hitting legislation that regulate the oil industry.

Carnival Cruise's line of ships (which contain about 50 ships) contribute the same amount of emissions as all the cars in Europe. We could make the hard descision to regulate cruise ships away or maybe everyone in Europe could stop driving altogther