Here is the source of the claim:
- Mediamatter for America climate statistics graph
- Tweeted, and re-tweeted by Al Gore
- The source that the image refers to: REPORT: CNBC's Climate Denial Is Bad For Business
The text in the image says:
51% of CNBC climate coverage denies that climate change is caused by man-made pollution
Is this true?
The text from Media Matters for America says:
Twenty-four out of the 47 substantial mentions or segments on climate change on CNBC, or just over 51 percent of coverage, cast doubt on whether manmade climate change existed.
Is this true?