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: There is some change in how carbon is divided between the atmosphere and the ocean.
Example Output: neutral

Example Input: The earth’s cattle population actually produces more carbon dioxide than automobiles, planes, and all other forms of transport combined.
Example Output: neutral

Example Input: The reliance on models will probably increase, because what is happening right now in the Arctic appears to be so fast that we hardly have any time to take data points and declare that we now know what is going on in the present climate.
Example Output:
neutral