Visitors will get to know about the causes of global warming, such as having originated from that? what are the factors. Is there a way to reduce global warming?, etc.
Visitors will learn about the causes of global warming, such as where it originated from. What are the factors There are, however, ways to reduce global warming and so on.
The study will gain knowledge about the causes of global warming, such as originated from where nothing else is a factor, there are ways to reduce global warming. And so on.