Carbon Sciences Achieves Major Milestone in CO2-to-Fuel Reaction Time

SANTA BARBARA, CA--(Marketwire - June 29, 2009) - Carbon Sciences Inc. (OTCBB: CABN), the developer of a breakthrough technology to recycle carbon dioxide (CO2) emissions into gasoline and other fuels, announced a significant technical development in reducing the reaction time of its CO2-to-Fuel process from hours to minutes. This achievement dramatically increases the scalability and decreases the costs of building and operating an industrial scale CO2-to-Fuel plant.

Reaction time is the time required to convert a unit amount of raw material to products in a fixed biochemical reactor and is a very important parameter for scalability and process economics. In the case of CO2 to fuel, a slow reaction time translates to a very large reactor size for holding and processing a continuous stream of CO2 from a large emitter, such as a coal-fired power plant. For example, if a 1 cubic meter reactor can process 1 ton of CO2 per day, then 5,000 reactors are required to process 5,000 tons/day of CO2 emissions from a medium sized coal-fired power plant. However, if a 1 cubic meter reactor can process 10 tons of CO2 per day, then only 500 reactors are required.

In previous designs of the Company's biocatalytic process, CO2 was transformed into fuel in approximately 10 hours. Due to advanced breakthroughs in enzyme encapsulation and a new and novel micro-sized biocatalytic structure, the Company has achieved a major milestone by transforming CO2 into fuel within 10 to 30 minutes.

Dr. Naveed Aslam, the company's CTO, commented on this breakthrough, "We are very excited about this milestone. Due to our proprietary process and reaction design, we believe we can lower the reaction time even more. We are not aware of any other renewable fuel technology that can come close to our reaction time. For example, corn requires an effective reaction time of 3-4 months as it absorbs CO2 from the air into kernels that are then fermented into ethanol fuel. As a result of this long 'reaction time', an enormous amount of farmland is required by corn to (a) absorb CO2, and (b) produce meaningful amounts of fuel."

Byron Elton, the company's CEO, said, "With our recent technical breakthroughs, we strongly believe that we are developing the most efficient and viable renewable fuel technology in the world. We estimate that with less than half of the CO2 emissions from coal-fired power plants alone, we can produce 30% of the world's liquid fuel supply. I am delighted with our progress and we are on schedule with our development plan."

About Carbon Sciences Inc.

Carbon Sciences Inc. is developing a breakthrough technology to recycle carbon dioxide (CO2) emissions into the basic fuel building blocks required to produce gasoline, diesel fuel, jet fuel and other fuels. Innovating at the intersection of chemical engineering and bio-engineering disciplines, we are developing a highly scalable biocatalytic process to meet the fuel needs of the world. Our solution to energy and climate challenges is to enable a sustainable world of fuel consumption and climate stability by recycling CO2 into fuel. For example, Carbon Sciences' breakthrough technology can be used to recycle CO2 emitted from fossil fuel power plants into gasoline to run cars and jet fuel to fly aircraft. To learn more about the Company, please visit our website at http://www.carbonsciences.com.

Safe Harbor Statement

Matters discussed in this press release contain statements that look forward within the meaning of the Private Securities Litigation Reform Act of 1995. When used in this press release, the words "anticipate," "believe," "estimate," "may," "intend," "expect" and similar expressions identify such statements that look forward. Actual results, performance or achievements could differ materially from those contemplated, expressed or implied by the statements that look forward contained herein, and while expected, there is no guarantee that we will attain the aforementioned anticipated developmental milestones. These statements that look forward are based largely on the expectations of the Company and are subject to a number of risks and uncertainties. These include, but are not limited to, risks and uncertainties associated with: the impact of economic, competitive and other factors affecting the Company and its operations, markets, product, and distributor performance, the impact on the national and local economies resulting from terrorist actions, and U.S. actions subsequently; and other factors detailed in reports filed by the Company.

Contact Information: Media Relations Contact: Christina Brozek Avalanche Strategic Communications (201) 488-0049