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.

[Q]: If human-driven climate change continues on the present course, the ice covering the site could begin to melt in about 75 years.
[A]: agrees


[Q]: Roughly 75 percent of the carbon dioxide emissions from the natural world come not from above-ground biomass, but from the soil.
[A]: neutral


[Q]: But only half of the carbon dioxide stays up there.
[A]:
disagrees


