I'm stealing your comment just for exposure.
As an urban designer and planner specialized in cities adaptation and mitigation to climate change, I met a lot of climate scientists, meteorologists, cities historians, ... and yes I can tell you, climate change is super real and you can already feel its effects in many places around the world and probably even in your homecity.
Climate change is a natural global process of our planet. BUT, human activities have accelerated at super fast pace since industrial revolution. The main reasons are fossil fuel consumption and greenhouse gases emissions combined with the reduction of green lands, forest, wild lands, capable of absorb the surplus of greenhouse gases, reduce the sun impact and balance the climate. The main effect is the global increase of temperature around the world and the higher frequency of temperature anomalies. Also, extreme weather conditions are more and more frequents (keep in mind that super low temperature can be one of these unexpected extreme weather condition resulting of the climate change).
The main impact of climate change is of course the massive loss of biodiversity which is concerning because we might not be able to find a way to replace the positive externalities from the biodiversity such as pollination, soil fertility, etc ...
Also the global warmin leads to the North pole ice melting and the rise of the oceans. We already have some places highly damaged by the ocean rising and it cost billions to reinforce the coast line or even in some cases move entire cities hundreds of meters back (like the city of Capbreton in France, planning such project).
Currently I'm working in Venice (Italy) because as you may guess, the city is highly vulnerable to climate change and the rise of the oceans. Actually if nothing is done Venice will vanish quite fast.
But even far from the oceans climate change is already modifying our lives and cost us shittons of money. It's affecting almost every aspect of human activities such as :
- Agriculture (soil less and less fertile, also and mainly because of intensive agriculture but climate change doesn't help)
- Migrations (Already more than 50 million of people moved away from their region because of climate change, we expect at least 250 million climate migrant by 2030).
And of course economy (if you find your taxes already expensive wait a few years and the cost of climate change on society will skyrocket)
But don't expect some catastrophic scenario like in hollywood movies, it's going step by step, that's why now we're putting as much effort in adaptation to climate change than in mitigation. But if we don't do more efforts in mitigation soon, because some don't believe in it or find it too expensive, too heavy for the economy or the taxpayers, in the end it's going to cost wayyyy more than it should. The more we wait, the hard the crash will be. And if nothing efficient is done we might see some Mad Max scenario going on in a few centuries.
As my message is super long and the topic interesting I might open a new topic on it to answer questions if some have.