| http://www.w3.org/ns/prov#value | - Approximately 5% of the respondents were climate scientists, and 8.5% of the respondents indicated that more than 50% of their peer-reviewed publications in the past 5 years have been on the subject of climate change The key questions were what do you think has been the trend in global mean temperatures since 1880 and ???Do you think human activity is a significant contributing factor in changing
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