Much of the intriguing climate tech that crosses our desks is theoretical or only just coming to market — think: tech that sucks carbon out of the sky, emerging lithium-ion battery alternatives and bio-plastics that've yet to seriously scale. The Toronto-based venture firm just announced the close of a $335 million fund (USD) — its third and largest to date. "If you're not making money, you're not having impact," McCaig told TechCrunch.