Whatever we may need, too many people are not interested.
There was a report in the Observer today of a results of a research project by Cambridge University. It showed that when people add insulation to their houses, they see an initial reduction in fuel consumption, but within 4 years consumption is up to pre insulation levels.
Presumably because they get lazy, put the thermostat up a degree or two, worry less about having windows open etc etc.
The problem is - that even in the current circumstances - people know what to do but cannot be bothered to do it. You can advertise to people like that day and night for a fortnight, but they still will not listen to the message.
By the way Oreo putting things on tv, does not mean everyone sees it. I watch little or no television, mostly BBC, and tend to leave the room and do something else during any advert breaks. Many older people today do not watch tv. In fact I know very few that do.