Read the passage and find if the passage agrees, disagrees, or has a neutral stance on whether Global warming is caused by human activities. Answer only with keyword (a) agrees - if passage agrees with the target (b) disagrees - if passage disagrees with the target (c) neutral - if the given passage neither agrees nor disagrees with the target. You don't need to use external knowledge in this task, and you have to answer based on the given passage.

[EX Q]: They are on the verge of passing climate legislation at home and a global carbon accord at the Copenhagen talks.
[EX A]: neutral

[EX Q]: But only half of the carbon dioxide stays up there.
[EX A]: disagrees

[EX Q]: There may have been an orchestrated effort to mislead the public about the threat of global climate change.
[EX A]:
disagrees