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Codexis, which produces enzymes and catalysts for biofuels and greener chemicals, raises $78 million as this year's first IPO of a U.S.-based green tech company.
Making industrial chemicals from plants is easier to crack into than the cut-rate world of transportation fuels for young green-tech companies seeking a commercial foothold.
No doubt, technology innovation has blossomed in energy and the environment, but green-tech upstarts still have a long way to go to make an economic and environmental impact.
Eyeing Brazil, biotech company Amyris plans to raise $100 million to build facilities that convert cane sugar into replacements for petroleum-based fuels.
Biotech company Genomatica raises $15 million in venture funding to test the process of making industrial chemicals from sugar water.
Electric car maker Tesla, solar company Solyndra, and others have plans for public offerings. Is it too much too soon or will there be more start-up acquisitions?
Green tech is still attracting billions of dollars a year, but the amount of money has shrunk significantly as investors began to focus on start-ups with the most potential.
Energy giant signs on for more development of designer liquid fuels that have similar characteristics to today's fuels but are cleaner.
Deal with Codexis seeks to make cellulosic ethanol more commercially viable through better biocatalysts.
Tata to bring small, all-electric car to Norway next year; a banner years for wind power; a home hydrogen-filling station; comparing the presidential candidates on plug-in cars; a microbial fuel cell for developing world; tips on greening your PC.