Cryptocurrency meets carbon trading. That’s the pitch from Nori, a new Seattle-based startup, that just raised $4 million in funding from cryptocurrency focused investors including Placeholder, North Island Ventures, Tenacious Ventures, and a big, privately held agriculture multinational that the company declined to disclose. Founded by Paul Gambill, a former Deloitte Technology employee who left the firm in 2015 to begin working on a company that would tackle climate change, Nori uses blockchain to solve the “double counting” that exists in the carbon offset market. “Every single carbon credit that…