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.
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Question: The hiatus in measured global warming could persist.

Answer: neutral


Question: The science is uncertain and the costs of reining in carbon dioxide and other emissions will be too high.

Answer: disagrees


Question: But only half of the carbon dioxide stays up there.

Answer:
disagrees