Information campaigns like the Covid-19 one would help people act on climate change.
A third of the cuts to UK emissions must come from people changing their behavior, according to the report.
The government's current approach is not adequate.
The government said it is committed to the net zero climate goals.
The government should financially support people to move to a more sustainable lifestyle.
The Prime Minister's focus on not intervening in people's lives is at odds with calls to change behavior.
She told the conference that she wasn't going to tell them what to do.
"People will have different lifestyles and make different choices about what changes they need to make, but we're quite clear that people need to be helped to take this forward."
She said that the Covid-19 Pandemic gave important lessons in how to communicate with the public.
The climate is a problem. The scale of the problem and the communications can be learned.
The report says we need to change our behavior in three areas.
The government should give grants so people can switch to electric cars and make it easier to walk and cycle.
The committee wants the government to consider a frequent flyer levy.
The committee wants the government to introduce a nationwide home-insulation drive to address the carbon footprint of our homes.
The government is looking at expanding the ELMS scheme that rewards farmers for environmental work.
The committee decided that taxes on foods that are bad for the environment should not be put in place now.
The government is reluctant to be open with the public about how much change is needed in regards to how we travel, how we heat our homes, and what we eat and buy.
The Department for Business, Energy and Industrial Strategy is committed to achieving net zero greenhouse gas emissions by the year 2050, according to a government spokesman.
85% of people are very concerned about climate change, and the public is eager for action.
The report shows how public messaging campaigns can change behavior.
It wants fairness to be at the center of change. The committee was told that the wealthiest 10% of Britons have a higher carbon footprint than the average.
Tobacco companies undermined anti-smoking campaigns, and the government must guard against this.