It is not science we need anymore, it's a heart and soul and an awakened consciousness to change our ways. It is this human-centric focus that has got us into the climate-change crisis in the first place - humans playing zero-sum games with every other living thing on the planet. Absolute egocentric megalomania and species-ism, fostered in some cultures more than others, over centuries. The appalling bigotry that human lives matter more than animal lives or tree lives. Or that humans are on top of the evolutionary pyramid. Taken by some as so self-evident that alternatives are unconscionable. How convenient for humans.
I agree Greta's message makes many people uncomfortable because it challenges their values and demands that they change their habits, comforts, conveniences or lifestyles. I've seen people use a welter of ways to 'attack the messenger' e.g., "Greta is unstable and mentally fragile/unsound" (from everything I've seen, she is not); "Children shouldn't be telling adults what to do"; "Adults are putting ideas in her head" (no, children in different generational cohorts are often born with different values and consciousness from the generations before - cf the 5-year-old girl in Ireland who refused off her own bat to eat "animal people" when her parents plied her with roast turkey); "She needs an education so she can debate the issues better" (this is just a delaying tactic). Notice how they attack her rather than engaging with her message. Projection, projection, projection.
Are these mutually exclusive? - "a workable solution based on science" vs. "stop doing the things we do"?
To me, the solution is stopping 2 things and starting 1 thing:
1. Stop using plastic (supermarkets and shops need to take the lead in this, and governments need to stipulate EARLY deadlines for changing policy, not lazy 10-year time-frames as we don't have that long when there are animals in the oceans and other ecosystems dying as I write).
2. Stop eating animals (apart from being more humane and healthier, this will lower carbon emissions). I don't understand why "No more cows" is ridiculous. Slaughtering a sentient being who values its life as much as we do ours would be "ridiculous" if it weren't so barbaric.
3. Start planting indigenous trees. We're never going to change our lifestyles to the point that we stop flying and driving, so the least we can do is plant trees on a MASSIVE scale. I'm sure it will be the main past-time of children in years to come - ditching the social media and planting trees as though their lives depended on it, which it does. I was pained to spot a headline today about 5 elephants starving to death in Zimbabwe due to drought. If that image doesn't spark a sense of urgency and impending change in people, nothing will.