TASK DEFINITION: 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.
PROBLEM: Global warming is caused by human greenhouse gases.

SOLUTION: neutral

PROBLEM: Mr. Morrison would not put jobs at risk or raise taxes in the pursuit of lower carbon emissions.

SOLUTION: neutral

PROBLEM: Oil will make climate change worse, and that the pipeline could break and spill oil into waterways like Montana's Missouri River.

SOLUTION:
agrees