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]: If we reach a certain point in the warming the warming, what we’ll end up with is a vicious cycle, where the warming causes additional permafrost melt, which causes additional CO2 to be released to the atmosphere, which causes additional warming, which creates this vicious cycle.
[EX A]: agrees

[EX Q]: Antarctica's sea ice has expanded by about half a percent a year.
[EX A]: disagrees

[EX Q]: Bleaching has been triggered by global warming and El Nino, a warming of parts of the Pacific Ocean that changes weather worldwide.
[EX A]:
agrees

