In some cases we do know what the weather was like 250 years ago and more. 17th and 18th century diarists, for example, wrote of weather just as bad as we have experienced. Medieval documents in the PRO and other places tell of awful weather. Deposits on the planet tell us how the planet became...
It's not fate. This awful weather is not new. It happens every once in a while. The Brighton-Shoreham coastline lost about 250 acres to the sea during winds and storms between 1290-1340. We should have lost even more in the 150 or so years since we concreted over the cliffs to build the...
The Himalayas are still rising after their impact with the Indian plate zillions of years ago. If they are getting higher, then they are also getting colder, and their glaciers will increase.
The weather will get worse and then the weather will get better, and worse, and better, and some species will die out and new species will dominate. It's called evolution and has been happening for billions of years.
Quite. They would be extinct. As would pigs, chickens, and anything else man grows or nurtures to eat. And so, for that matter, would man be extinct as well.
Since the little ice age, it has taken about 800 years for the oceans to warm up, and that warmth is affecting the weather. Man really is much more insignificant than he thinks he is. Nature always wins.