word | | Environment - current issues |
| Baker | United States Pacific Island Wildlife Refuges | Baker, Howland, and Jarvis Islands, and Johnston Atoll: no natural fresh water resources Kingman Reef: none Midway Islands and Palmyra Atoll: NA |
| Baku | Azerbaijan | local scientists consider the Abseron Yasaqligi (Apsheron Peninsula) (including Baku and Sumqayit) and the Caspian Sea to be the ecologically most devastated area in the world because of severe air, soil, and ... |
| Baltic | Atlantic Ocean | ... and eastern Argentina; oil pollution in Caribbean Sea, Gulf of Mexico, Lake Maracaibo, Mediterranean Sea, and North Sea; industrial waste and municipal sewage pollution in Baltic Sea, North Sea, and Mediterranean Sea |
| Baltic | Germany | ... to air pollution; acid rain, resulting from sulfur dioxide emissions, is damaging forests; pollution in the Baltic Sea from raw sewage and industrial effluents from rivers in eastern Germany; hazardous waste disposal ... |
| Baltic | Sweden | acid rain damage to soils and lakes; pollution of the North Sea and the Baltic Sea |
| banned | Moldova | heavy use of agricultural chemicals, including banned pesticides such as DDT, has contaminated soil and groundwater; extensive soil erosion from poor farming methods |
| Barrier | Australia | ... for agricultural purposes threatens the natural habitat of many unique animal and plant species; the Great Barrier Reef off the northeast coast, the largest coral reef in the world, is threatened by ... |
| base | Akrotiri | hunting around the salt lake; note - breeding place for loggerhead and green turtles; only remaining colony of griffon vultures is on the base |
| bases | Lithuania | contamination of soil and groundwater with petroleum products and chemicals at military bases |
| Basin | Brazil | deforestation in Amazon Basin destroys the habitat and endangers a multitude of plant and animal species indigenous to the area; there is a lucrative illegal wildlife trade; air and water pollution in ... |
| Basin | Ecuador | deforestation; soil erosion; desertification; water pollution; pollution from oil production wastes in ecologically sensitive areas of the Amazon Basin and Galapagos Islands |