I don't know
which particular climate changes you are interested in, but I suggest you pick up a copy of a good climate textbook such as The Earth System by Lee R. Kump, James F. Kasting, and Robert G. Crane.
Those areas started to appear in August, if I recall correctly, and I can't say for sure if this is related to
a particular climate change.
The book is structured around chapters which integrate
a particular climate change element's effect on one or more health issues, often involving a personal story of some type.
Climate changes can have several different reasons, and the cause of
any particular climate change needs to be investigated on a case by case basis.