What would best explain why it has taken scientists so long to come to a consensus that greenhouse gas emissions from human activity is leading to climate change?

There is no proposed mechanism for how greenhouse gases would lead to climate change.

Because there are so many factors involved in climate, it has been difficult to rule out other possible causes.

Scientists couldn't show that increased greenhouse gas emissions preceded rising global temperatures.

There is no correlation between greenhouse gas emissions and climate change.

Question

What would best explain why it has taken scientists so long to come to a consensus that greenhouse gas emissions from human activity is leading to climate change?
	
There is no proposed mechanism for how greenhouse gases would lead to climate change.
 	
Because there are so many factors involved in climate, it has been difficult to rule out other possible causes.
 	
Scientists couldn't show that increased greenhouse gas emissions preceded rising global temperatures.
 	
There is no correlation between greenhouse gas emissions and climate change.

otherworldly · Answer

its not D

tylermckinney16 · Answer

Ok

ben00 · Answer

Maybe B? Humans are causing global warming.

otherworldly · Answer

either B or C i think it is B

danjs · Answer

i would say the second one.
You have to show all the other factors aren't the main cause

ben00 · Answer

Yea, maybe B there's so many stuff going on the scientist can figure it out. I mean it can be anything.

ben00 · Answer

The answer should be the second.

jim_thompson5910 · Answer

Depends who you ask really. For some, it's a political issue which could get a bit heated. In reality, the reason why it has taken so long is because there are so many factors involved in shaping the climate. We still don't know everything about climate but we're learning new things every day.

ben00 · Answer

Now can I get a medal?

ben00 · Answer

Thanks.