Why good ideas get trapped in the valley of death -- and how to rescue them

All new products must pass through the "valley of death" before they reach the market. Many never make it out, and sometimes that's OK -- if they don't work, don't fill a need or for any number of reasons. One of the fields where this problem is most pressing is zero-carbon technologies. Why is it vulnerable to this trap, and can we change it? Explore how to break the cycle of the funding gap. [Written by Elizabeth Cox and George Zaidan, directed by Lisa LaBracio, narrated by Jack Cutmore-Scott]