Carbon Scenarios report concludes that , ' global warming targets ` ` unrealistic '' Report 's author : ` ` We have failed . We could not prevent varying degrees of warming '' Document explores three scenarios for global warming under different circumstances . Proposes radical shift in policy to introduce global carbon caps and permits .
Carbon Scenarios report says EU , UK global warming targets `` unrealistic '' Report 's author : `` We have failed . We will not prevent two degrees of warming '' Document explores three scenarios for global warming under different policies . Proposes radical shift in policy to introduce global carbon caps and permits .