A、There were fewer studies done. B、There were fewer policy proposals. C、There was less agreement. D、There were fewer objectives.

Last week, a United Nations report says humans are very likely to the cause of most of temperature increases in the last 50 years. It says global warming is the truth and the world can expect to feel the effects for centuries to come. The Intergovernmental panel on climate change released the report in Pairs at a conference of climate experts. Representatives of more than 100 governments agreed on the findings. This is the most detailed scientific report to date on global warming and the influence of fuel burning and other human activities. The scientists say there is greater than a 90% chance that greenhouse gases are the main cause of rising temperatures and sea levels. The report also links global warming to other changes including increased dryness in some areas and violent storm patterns. The UN panel released its last climate change report 6 years ago. The scientists say the new report is based on studies done since then and stronger agreement on global warming. The new report makes no policy proposals but the aim is to press governments and industries to cut the release of carbon dioxide and other gases blamed for trapping heat.
5. Where was the report released?
6. Which of the following is the main cause of global warming?
7. What does the news item imply about the last report?