Global warming observed over the past century has focused attentionon mantled greenhouse gas，presumed to be the likely cause．
举一反三
- Most of the global warming observed over the past 50 years is attributable to human activities. ( )
- Global warming is mainly _______ by greenhouse gases emission. A: cause B: to cause C: causing D: caused
- According to scientists, the DIRECT cause of more and fiercer storms is ______. A: greenhouse gas emissions in industrialized nations B: higher surface water temperatures of the sea C: continuous global warming D: rising sea levels
- If the greenhouse gas emissions are stopped, the warming of sea water will stop. ( )
- Global Warming Global warming A mix of ______________ and irregular climate change Cause of global warming ________________: carbon dioxide, water vapor, and methane ________________: using forests as fuel, for building, furniture, etc. The use of __________________ on crops _____________________ Effects of global warming Destruction of important _______________________ systems Loss and endangement of many ___________________________ _______________________________________ Solutions to global warming To reduce gases put into atmosphere Be more _______________, use wind and solar power etc. To in crease greenhouse gases taken out of the atmosphere Planting trees Making changes to the _____________________________