An international team of scientists has found leaving more big fish in the sea reduces the amount of carbon dioxide (CO2) released into the Earth's atmosphere.
Every year, about 11 thousand tons of municipal solid waste, about 50 thousand tons of municipal wastewater and 15-20 thousand tons of water polluted with oil products are collected from ships entering the port of Riga.
Venezuela's opposition warned of a potential "environmental catastrophe" Thursday as a damaged oil tanker threatened to spill 1.3 million barrels of crude into waters separating Venezuela from Trinidad and Tobago.
Cyanobacterial mats have posed a huge problem for coral reef health. Previously, the bacteria covered about 1% of reefs, but that has grown to 20 to 30% in some places.