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.

Q: It’s just a trick created by pretending that all the scientists who agree that humans make a contribution to global warming (ie almost everyone).

A: disagrees
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Q: The global warming scare is a massive hoax.

A: disagrees
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Q: There’s no question that humans have altered the background atmosphere on a global scale.

A:
agrees
****