PowerPoint Presentation - Table 1.1 Oil Reserves of Top 15 Companies

IPCC - WGI

Attribution

•Asks whether observed changes are consistent with

˛expected responses to forcings

Qinconsistent with alternative explanations

Most of the observed increase in globally averaged temperatures since the mid-20th century is very likely (>90% certainty) due to the observed increase in anthropogenic greenhouse gas concentrations

TS-23

Anthro+ Nat forcing


	evaluated whether observed changes are quantitatively consistent with the expected response to external forcings and inconsistent with alternative physically plausible explanations.

	Could also make the point about needing to know the response to RF here.