Sure there nay be a variety of factors. BUT:
Before the Industrial Revolution – that is when society began to develop, use and rely on technology – carbon dioxide levels in the atmosphere were at about 280ppm.

Today, carbon dioxide concentrations in the atmosphere have increased to about 396ppm.

In order to put the current increase in carbon dioxide into context, look at the time of the fastest carbon dioxide rise in the past. In this case, it looks to be at about 130,000 years ago.

During this ‘rapid’ event, carbon dioxide increased from 198ppm to 287ppm (a total of 89ppm) over a period of 7,500 years.

Not only is the rate of current carbon dioxide emissions unseen in the last 400,000 years, the magnitude of the change is also incredible. We are now nearly at 400ppm.

We won't see the total effect of OUR efforts for many years because the earth can't react fast enough. But the damage is done. Weird weather is now the norm.

Remember Easter Island. Humans there thought they had unlimited growth potential there. Then a few hundred years later, they woke up and it was too late. It's too late already.