It was surrealistic when young climate activist Greta Thunberg gave her speech before the UN. She was shaming the people as in how dare you. Shame on you and they cheered. Many in that audience arrived by jet plane.
There is kind of a disconnect between what people say has to happen and the lives of most folks being business as usual. This disconnect contributes to climate anxiety.
Making the needed changes is possible, but challenging. Here are some of the challenges.
Reducing the carbon footprint as world population continues to grow. Expected to level off at around 10 billion people; 3 billion more than currently alive. More people needing places to live, jobs and so forth.
Much of the Third World has been, and still is rapidly rising out of poverty. Good news in many ways, but challenging when it comes to reducing the carbon footprint. More people driving cars and so forth.
Countries, such as Japan have shut down nuclear power plants which has led to an uptick in power coming from fossil fuels. It may be even harder to reduce dependency on fossil fuels if we decommission nuclear energy at the same time. Nuclear is a large source of non intermittent power. Solar and wind energy is best, but these are intermittent sources; meaning they only work when the wind is blowing or the sun is shining. The technology of battery and power grid distribution still needs improvement.
Significant reduction in the carbon footprint is doable, but it will require many changes in the way business and governments work, also changes in people's lifestyles, expectations and voting patterns. We also may have to rely on things like carbon sequestration and even geoengineering; meaning artificially reflecting some sunlight away from Earth.
How quickly we have to make big changes is up to debate, I think. According to Greta, pretty much right away; like in the next decade. That's anxiety producing, in itself. As for what the scientists say, that's a bit less clear. We do have a problem, but how quickly we have to solve it doesn't seem like the slam dunk; so to speak.