saco-indonesia.com, Sebuah analisis baru-baru ini telah mengungkapkan bahwa dalam 20 tahun terakhir jumlah es di Alaska semakin lama semakin menurun. Data ini telah didapat dari sebuah satelit radar yang telah mengitari beberapa kawasan bumi untuk dapat memantau situasi.
Kemungkinan besar, hal tersebut telah disebabkan oleh pemanasan global atau global warming. Lebih parah lagi, ilmuwan juga mengungkapkan kondisi akan terus berlanjut hingga di tahun-tahun mendatang.
Menurut lansiran Softpedia (3/2), hasil dari penyelidikan juga mengungkapkan bahwa penurunan danau es ini juga merupakan akibat langsung dari perubahan iklim dan pergeseran kecil lainnya terkait habitat serta ekosistem di seluruh dunia.
Jika hal ini terus akan terjadi, bukan tidak mungkin bumi akan merasakan akibatnya. Suhu bumi meningkat drastis. Otomatis, udara akan terasa panas dan semakin panas dari tahun ke tahun.
Beberapa wilayah di penjuru dunia sudah merasakan suhu ekstrem yang tidak wajar. Pemanasan global benar-benar akan menghantui penduduk bumi. Akankah ini terus berlanjut?
Editor : Dian Sukmawati
ES DI ALASKA TERUS MENCAIR, BUMI DALAM BAHAYA
WASHINGTON — During a training course on defending against knife attacks, a young Salt Lake City police officer asked a question: “How close can somebody get to me before I’m justified in using deadly force?”
Dennis Tueller, the instructor in that class more than three decades ago, decided to find out. In the fall of 1982, he performed a rudimentary series of tests and concluded that an armed attacker who bolted toward an officer could clear 21 feet in the time it took most officers to draw, aim and fire their weapon.
The next spring, Mr. Tueller published his findings in SWAT magazine and transformed police training in the United States. The “21-foot rule” became dogma. It has been taught in police academies around the country, accepted by courts and cited by officers to justify countless shootings, including recent episodes involving a homeless woodcarver in Seattle and a schizophrenic woman in San Francisco.
Now, amid the largest national debate over policing since the 1991 beating of Rodney King in Los Angeles, a small but vocal set of law enforcement officials are calling for a rethinking of the 21-foot rule and other axioms that have emphasized how to use force, not how to avoid it. Several big-city police departments are already re-examining when officers should chase people or draw their guns and when they should back away, wait or try to defuse the situation
Police Rethink Long Tradition on Using Force