But I want to point out, I'm glad he talked about measurements, about science, about a long data set. Here's a long data. These are charts of the Vostok ice core sample. This is about 400 some thousand years of climate history. I don't know how they do it, but you know, they know how to measure different gas percentages in the atmosphere. They can calculate temperature going back actually more than 800,000 years. (15:15–15:23)
CLAIM
Asserts that the Vostok ice core sample provides 400,000 years of climate history.
This is an excerpt from a raw transcript. The assertions have not been audited or verified. Tap the video to view the source footage and understand the context.
