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: Recent global warming is both real and mostly the result of human activity.

A: agrees
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Q: The earth’s cattle population actually produces more carbon dioxide than automobiles, planes, and all other forms of transport combined.

A: neutral
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Q: A warning sign that some scientists worry could mean global warming has passed an ominous tipping point.

A:
agrees
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