12.01.2017 Views

comm-appendix-support-cross

comm-appendix-support-cross

comm-appendix-support-cross

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

8/1/2016 Exxon Confirmed Global Warming Consensus In 1982 with In-House Climate Models | InsideClimate News<br />

The Growing Certainty of IPCC<br />

Climate Models and Assessments<br />

Relying on better and better climate models, the<br />

Intergovernmental Panel on Climate Change (IPCC)<br />

has expressed increasing confidence that human<br />

activity is driving global warming.<br />

I IPCC<br />

RtPQRT<br />

im<br />

i<br />

\PGG<br />

RtPQRT W<br />

2001<br />

I<br />

\PCG<br />

fllPOW 83<br />

2001<br />

"It Is extremely likely that human<br />

influence has been the dominant cause<br />

of the observed warming since the<br />

mid-20th century."<br />

IPCC CONFIDENCE LEVEL: iffl<br />

"Most of the observed increase in global<br />

average temperatures since the mid-<br />

20th century is very likely due to the<br />

observed increase in anthropogenic<br />

greenhouse gas concentrations."<br />

IPCC CONFIDENCE LEVEL: EE!<br />

"Most of the observed warming over<br />

the last 50 years is likely to have been<br />

due to the increase in greenhouse gas<br />

concentrations."<br />

IPCC CONFIDENCE LEVEL: EBl<br />

\PGG<br />

RtPOW w<br />

"The balance of evidence suggests<br />

that there is discernable human<br />

influence on global climate."<br />

\PGG<br />

RtPQRT W<br />

1990<br />

"It is not possible at this time to<br />

attribute all or even a large part of the<br />

observed global mean warming to the<br />

enhanced greenhouse effect on the<br />

basis of observational data currently<br />

available."<br />

SOURCE: IPCC<br />

PAUL HORN / InsideClimate News<br />

As the consensus grew within the scientific world,<br />

Exxon doubled down on the uncertainty. Its<br />

campaign to muddy research results placed the<br />

company outside the scientific mainstream. Some of<br />

the researchers who once led the company's<br />

App. 536<br />

https://insideclimatenews.or g/news/18092015/exxon-confirmed-global-warmlng-consensus-in-1982-with-ln-house-climat&-models 12/15

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!