The only way to really stop the climate change is for everyone to come together,
See, that's not true; It's an article of faith from the green neo-luddite movement, which holds that each individual has both the responsibility and the power to make a difference. But that's not true and never has been.
Sure,
if everyone came together to implement appropriate changes in lifestyle, that would fix the problem; But that's neither plausible nor (thankfully) necessary.
The problem could be solved by the actions of a very small number of politicians and energy companies. If all the electricity were generated by nuclear power plants, hydroelectric plants, and other zero carbon technologies; And hydrocarbon fuels for vehicles were made using that electricity, and/or from biological sources, then it would make zero difference how Joe Lunchpail chose to live - he could drive his huge, inefficient truck, leave his air conditioner running full blast 24/7 and simultaneously use a heater when his house got too cold, buy only food produced on the opposite side of the planet, and generally be as wasteful as he likes, and doing so would multiply his carbon footprint by ten, or a hundred, or a thousand without polluting the atmosphere one iota - because ten, a hundred or even a thousand times zero is still zero.
If eight billion people all work together towards a single goal, then each one need only do a few small things, in order to make a huge impact. BUT, if seven point nine billion people work towards a single goal, by doing a few small things, then the other 100 million people can completely fuck them up by doing a few big things towards an opposite goal.
And that cuts both ways. A handful of uncaring but wealthy and/or powerful people can completely fuck up the atmosphere, and there's nothing the powerless majority can do to stop them. But equally, a handful of caring and wealthy and/or powerful people can make it impossible for the uncaring behaviour of the powerless majority to fuck things up, no matter how hard they try.
When you can get hydrocarbon fuel and/or electricity cheaply and conveniently
only from non-fossil sources, being lazy automatically means having a zero carbon footprint.
That's not to say that an inefficient and wasteful lifestyle isn't going to harm our environment in other ways; Nor that such behaviour shouldn't be discouraged. But you can't add carbon dioxide to the atmosphere by burning carbon neutral fuels, even if you're a dickhead who's deliberately trying to make things worse.