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

Example Input: Even if the warming increases, humans can adjust.
Example Output: neutral

Example Input: Climate policy is good for humans.
Example Output:
neutral