Your doomsday scenarios are not well supported by science.

Read up on the the ACTUAL science of climate change and you'll find that a lot of what is said about the effects of climate change have been GROSSLY exaggerated.  For example, regarding the violent storms for coastal areas, the latest IPCC report states:

"In the future, it is likely that the frequency of tropical cyclones globally will either decrease or remain unchanged, but there will be a likely increase in global mean tropical cyclone precipitation
rates and maximum wind speed" 
Source: https://www.ipcc.ch/pdf/assessment-report/ar5/wg2/WGIIAR5-Chap5_FINAL.pdf  - Page 370)

10 years ago there was a low confidence that climate change might cause more storms.  Today there is a low confidence that climate change will have either no impact or cause a decrease in storms but maybe slightly more rain.

.... yet somehow people are still running with this claiming an imminent disaster of biblical proportions.