Answer:
a) I think we would not be able to control climatic changes since two hundred years ago many people had no knowledge about climate change and it would have been difficult for them to tackle changes in climate
b) The past information reveals that many people were not aware of climate change because they had no knowledge about climate change.
myclimate.org
Date: 26. of May 2009 | By: Urs
Maybe it would be interesting to figure what we would have done differently a hundred years ago with the necessery knowledge about climate change... even though this is a virtual thought experiment, it can inspire action taking today.