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.

Example Input: The environmental movement is now saying " climate change " because it can explain anything, including " decades of global cooling, " as one Fox News host claimed.
Example Output: neutral

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

Example Input: The global warming scare is a massive hoax.
Example Output:
disagrees