[CM.06] There's a sharp difference of opinion among scientists about global warming and the risks it may pose. A few scientists say that global warming is
not a serious issue. Other scientists feel that rising levels of carbon dioxide could trigger a sharp change in the Earth's climate. Based on the opinion of
scientists it may be concluded that
O there is only one proven risk of global warming.
O there are several new ideas about the risks of global warming.
O all scientists give invalid opinions about the risks of global warming.
O no scientist can give a valid opinion about the risks of global warming.
