I don't think it's realistic to expect the average person to drive the changes towards sustainability that corporations need to make. Too many people need to work together and that just isn't in our nature. These corporations need to be reigned in by the government, which is elected by the people. That's how we can create change.
We can't even get everyone on the same page with regards to the pandemic and wearing masks. The damage from this pandemic is happening right now, in front of our eyes, in measurable ways. Family members and friends dying. And still the average person can't be counted on to wear a mask in public unless it's mandated by the government.
At the end of the day we need these changes to happen and even if many, or most, people are on board, it won't be enough. It has to be everyone, and corporations that have the most effect on the situation need to be forced to comply. We don't have time to let this happen naturally. It needs to happen yesterday.
We're on the same page. Change has to come from the top. The good news is that it CAN come from the top and remain profitable and sustainable. The biggest CO2 culprit is power, the basic function of keeping everything "On" (heat, machinery, electricity). As we transition from fossils to solar/wind/geothermal, we can drastically reduce our eco footprint and hopefully slow or stop the damage. It's a long-term gain for corporations and no pain for consumers -- win-win, which is the only way this shift works.
The next biggest eco-culprit is agriculture (livestock, forestry). Many people are terrified of anything grown in a lab, but that's our future. If they get it right, we'll be eating synthesized meat and genetically modified produce, and not noticing much a difference. More important, we'll be eliminating a huge amount of terra-waste and feeding far more people for much less. Another win-win, eventually.
We can't undo the damage we've done and I don't believe we can change our nature, but we can science our way out of the hole we've dug.