TECHNOLOGY FOCUS - BIOLOGY - Preferred Components: The algae comprises carbon provided directly from an adjacent industrial facility. The algae comprise micro/macro algae. The fraction of the algae comprises a mineral solution.    TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Method: The renewable energy comprises solar energy.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The solid catalyst particles comprise acid alum and sodium silicate. The solid biomass particles are characterized by average particle sizes of 10-2000 microns, and the catalyst comprises a basic catalyst, and contacting the solid biomass particles with a catalyst forms a mechanochemical interaction between the solid biomass particles and the catalyst. The carbon dioxide is a product of converting biomass into a fuel or specialty chemical. The greenhouse gas comprises carbon dioxide from an adjacent industrial facility.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The growth container comprises a stirring reactor with an internal light source and reflective inner wall. The growth container comprises a first region allowing light energy to reach the algae; and a second region preventing light energy from reaching the algae. The growth container comprises a flexible pouch or a plastic bag adapted for growing macro algae. The suspension of the algae comprises 5 wt.% of micro algae in an aqueous liquid.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The method further comprises: selecting algae that maximizes total mass grown per unit volume per unit time; excluding a separation of algae oil from algae solid; providing a greenhouse gas, providing light energy, and growing algae in a growth container with the greenhouse gas and the light energy; upgrading the biocrude, to produce a fuel or specially chemical; flocculating the algae with solid biomass particles; de-mineralizing the algae, to mitigate at least one of char and ash formation upon conversion of the biomass into a fuel or specialty chemical; providing char from the catalytic cracking to a biomass growth source, to fertilize the biomass growth source; and flocculating the algae with immature algae cells. The method of producing biomass and sequestering greenhouse gas further comprises deriving the light energy from a renewable energy source; matching the light energy to the absorption spectrum of the algae; purifying the greenhouse gas using a fraction of the light energy; using a fraction of the light energy to heat the algae in the growth container; circulating a suspension of the algae through a sluice comprising an optically transparent region through which the light energy is provided to the algae; circulating the algae between the first region and the second region, and harvesting a mature fraction of the algae from the second region; operating the growth container at a predetermined temperature, to facilitate algae growth; providing waste heat from an adjacent commercial or industrial facility to the growth container, to facilitate algae growth; providing waste water from an adjacent commercial or industrial facility to the growth container, and bio-remediating the waste water by growing algae in the waste water; separating a fraction of the algae suitable for use as a fertilizer or specialty chemical; de-watering the algae, agitating the algae, to produce the solid biomass particles, and contacting the solid biomass particles with a catalyst; flocculating the algae; flocculating the algae with the solid catalyst particles; torrefying the algae at a temperature of below 300 degrees C, to produce the solid biomass particles having an increased brittleness and/or susceptibility to catalytic conversion; catalytically cracking solid biomass, to produce a biocrude; providing at least a fraction of char from the catalytic cracking to the growth container as a fertilizer for growing algae; purifying the greenhouse gas; preventing undesired biological contamination of the growth container; providing the fraction to a biomass growth source as a fertilizer; providing a fertilizer to the growth container, to facilitate algae growth; obtaining carbon credits for sequestering the greenhouse gas; processing the algae into a plurality of solid biomass particles suitable for use in a biomass feedstock; providing a growth medium comprising fresh water; providing a growth medium comprising salt water; purifying liquid comprising sewage by growing algae in the liquid; separating purified water from the liquid with a one-way osmotic membrane in fluid communication with the growth container; supplying growth medium comprising waste water; providing the greenhouse gas at a pressure greater than atmospheric pressure; sparging gas into the growth container; and scrubbing gas from the growth container. The growing algae comprise maximizing the yield of algae mass per unit volume per unit time. The growing algae preferentially produce a cellulosic component relative to an oil component. The processing excludes an oil extraction from the algae. The industrial facility comprises the biomass catalytic cracking facility. Preferred Components: The solid biomass particles comprise lignocellulose, and are torrefied biomass particles. The biocrude is characterized by a total acid number of less than 20 and can be converted into a fuel or specialty chemical using a conventional petrochemical processing or refining unit, a strong acid number of less than 5, a pH value of above 4, and a low corrosiveness. EXAMPLE - No suitable example given.