A Thames estuary tidal flood defense program valued at 300 million pounds ($474 million) that’s designed to protect the London area from rising waters has been awarded to CH2M Hill, Balfour Beatty Plc (BBY) and its infrastructure suppliers, the
Plants are more than just a beautiful addition to a backyard pond. They also serve an important function in maintaining an appropriate balance of nutrients in the pond’s water. Plants not only reduce the amount of algae that is able to grow, but also use waste materials from fish, providing a natural water filtration mechanism. Choosing the right combination of aquatic plants from the four categories will help keep your pond water clean and clear without the addition of chemicals.