"Try to find if something out there is similar. If it's already being done, now you need to find out if you can do it better or cheaper. If you have a good product and no one's buying, improve it and tweak it."

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Ocean acidification looks suspiciously like a back-up plan by the environmental pressure groups in case the climate fails to warm: another try at condemning fossil fuels. [...] Even if the world warms as much as the consensus expects, the net harm still looks small alongside the real harm now being done by preventable causes; and if it does warm this much, it will be because more people are rich enough to afford to do something about it.

— Matt Ridley