Big Think is obviously an US-dominated expert networking website, at least in the current “beta” version. Please, make it a “Big Think” place not mainly for US-Americans.
The format is not that convincing: the videos are all in the same “spotlessly clean” format. Outlining an idea in a few minutes is good for an “elevator speech”, but not that interesting for debating ideas.
The context of a video is also totally lacking: no links to related information sources and people.
A search for “climate change” delivers 0 hits. So, there are no ideas of “today’s leading thinkers” regarding this topic, mmmh? A search for the category “environment” delivers confused comments from “everybody should use a reel lawn mower” to “Reduce that World Human Population”. There are currently no “social” control mechanism implemented to tag such entries, like e.g. “not useful” or “not well written”.