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: While scientists say man-made climate change isn't solely to blame for tropical storms, studies have shown that higher temperatures can make them wetter and more damaging.
Example Output: neutral

Example Input: Glacier melt in Iceland will cause more volcanoes everywhere.
Example Output: agrees

Example Input: And ocean acidification, which comes from the added carbon absorbed by oceans, will harm marine life.
Example Output:
agrees