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: I was surprised to learn that shortage of good climate scientists is a global problem.
Example Output: neutral

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

Example Input: Through the 1980s, Exxon researched the emerging science of man-made climate change by, among other things, modeling increases in global temperatures due to carbon dioxide emissions.
Example Output:
neutral

