Biosensor it affects marine organisms, especially plankton (floating microorganisms) and viruses that attack plankton. Plankton form the base of the marine food chains and are believed to affect our planet's temperature and weather by uptake of CO for photosynthesis. Deneb Karentz, a researcher at the Laboratory of Radio-biology and Environmental Health (University of California, San Francisco) has devised a simple method for measuring ultraviolet penetration and intensity. Working in the Antarctic Ocean, she submerged to various depths thin plastic bags containing special strains of "E. coli" that are almost totally unable to repair ultraviolet radiation damage to their DNA. Bacterial death
Short food supply chains France was aimed at supporting the development of short food chains. According to the plan, short food chains are defined on the base of the number of actors involved; precisely : SFSC are considered as « "commercialisation of agricultural products through direct selling or indirect selling when only one intermediary is involved" ». (« "Un circuit court est un mode de commercialisation des produits agricoles qui s'exerce soit par la vente directe du producteur au consommateur, soit par la vente indirecte à condition qu'il n'y ait qu'un seul intermédiaire". » . However, there have been discussions at the senate and