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 U.S. going back to the stone age will not do anything to stop global warming.

Answer: neutral


Question: While many scientists are wary of drawing firm links between any particular storm and climate change, a rising sea level adds to the destructiveness of storm surges, and a warming atmosphere holds more moisture, leading to more rain.

Answer: agrees


Question: Global warming has caused and will continue to cause a significant increase in extreme weather events, including hurricanes, and sea levels will eventually rise to the point that massive cities will someday be flooded and uninhabitable.

Answer:
agrees