Abstract: Systems and methods to separate carbon dioxide from flue gases and sequester carbon dioxide are described here. By using the properties of carbon dioxide and the temperature in a body of water (e.g., the ocean or freshwater body of water) or the temperatures of the ambient atmosphere, gaseous carbon dioxide can be converted to a liquid and separated from other gases. Pressure used to separate carbon dioxide from other gases may also be used to sequester liquid carbon dioxide. The liquid carbon dioxide is inert and can be discharged into the ocean without dissolving in seawater and acidifying the ocean. The liquid carbon dioxide may further be densified to be denser than seawater. The liquid carbon dioxide can then sink to the bottom of the ocean or be injected into ocean sediments or sediments and rocks beneath the ocean floor, inert and sequestered for the long term.

Abstract: An elevated insulated pet shelter comprises a main housing unit formed as a hollow generally rectangular shaped box with a front wall, a back wall, two side walls, a floor and a roof. The front wall includes a large aperture which extends therethrough. Four legs are formed as long solid, generally rectangular shaped blocks and are positioned vertically in the operative orientation. The uppermost extent of the legs includes coupling devices to permit affixation to the floor of the main housing unit. An entrance tunnel is formed in a long hollow configuration with a first open end and a second open end. The first open end is affixed to the front wall of the housing unit around the periphery of its aperture. The second open end is adapted to be positioned with its lowermost extent resting upon the ground. The uppermost extent of the second open end is positioned slightly higher than the lowermost extent of the first open end.