Update climate-change-faqs.md

[franciscrot]

Embed this data visualisation? Or not?

[martysteer]

iframe will work, but by default when hugo transforms markdown files it strips raw html. Have added a shortcode to be explicit about it. This works fine, except the iframe overlaps with the right hand menu. And it doesn't seem to resize without cropping.

Instead of an iframe, would a hyperlink to this interactive graphic from an image be okay?

[franciscrot]

Good solution to the terrifying rainbow emissions wormhole issue, thank you!