One of the effects of climate change predicted by climate scientists is that "weather events" are likely to become more frequent and more severe.
A lot nowadays!! A lot nowadays!!
In general, the social abuse happening nowadays in more subdued as compared to recent years. Today, people are more protected by laws that govern them.
manmade calamities?
Natural calamities cause social problems because of the damage they are capable of causing. This includes calamities like hurricanes, tornadoes, and floods.
My search on "Calamities" produced nothing.
The Three Calamities was created in 1999.
that depends on the calamity. Some calamities however, can't be prevented, like many natural disasters. An earthquake for instance, is caused by suck great forces of nature, that we can't prevent it from happening. What we can do, is create a plan to minimise damage. so for instance you'll be able to evaquate many people quickly from the disaster area. still, your question is quite general. with some calamities you can do more than with others.
Notes on natural calamities for project work are used as a guide for the complete project. The notes should include highlights of such natural calamities with details on when, where and how these calamities occurred.
No "NATURAL" calamities are man made.
Probably
blowing a lot of smoke
When there is a lot of snow.