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

A: agrees
****
Q: These are the effects of climate change.

A: neutral
****
Q: We canât retreat from the rising sea.

A:
agrees
****