|
Vestul Antarcticii se topeste cu repeziciune - echilibrul planetei, amenintat
World News 
Vestul Antarcticii se topeste cu o viteza mai mare decat cealalta parte a continentului de gheata, cercetatorii avertizand ca icebergurile de aici sunt in pericol de prabusire in ocean, ceea ce ar afecta echilibrul planetei.
Potrivit unui studiu publicat recent in revista Nature Geoscience, preluat de The New York Times, temperatura de la statia din Vestul Antarcticii a crescut cu 4,4 grade Fahrenheit (peste 15 grade Celsius), incepand cu 1958. Aceasta crestere a temperaturii este de trei ori mai mare decat rata medie a incalzirii globale. Cercetatorii au stabilit astfel ca Vestul Antarcticii este cea mai afectata regiune din lume, din punct de vedere al incalzirii globale. "Surprizele nu sunt intotdeauna placute. Cred ca ceea ce se intampla in Vestul Antarcticii este alarmant", spune Andrew J. Monaghan, cercetator la Centrul pentru Cercetari Atmosferice din Boulder, Colorado. In studiul citat se precizeaza ca topirea Antarcticii este un concept relativ. Temperaturile in acea zona raman foarte scazute, ajungand pana la 50 de grade Fahrenheit sub limita inghetului (10 grade Celsius). In timpul verii, temperaturile pot urca pana la valori pozitive, atunci fiind perioada in care calota glaciara se topeste mai mult. Baza ghetarilor se afla sub nivelul marii, ceea ce inseamna ca aceasta este portiunea cea mai afectata de incalzirea marii si oceanelor. O eventuala prabusire a Vestului Antarcticii ar fi catastrofala pentru mediu. Potrivit calculelor oamenilor de stiinta, un astfel de fenomen ar putea provoca cresterea nivelului apelor marilor si al oceanelor cu peste trei metri. Ce-i drept, acest lucru nu se poate intampla brusc, va fi nevoie de cateva sute de ani.
World News Related Content 7 Ways to Promote Your YouTube Channel If you have decided to create a YouTube channel, you need to find the best ways to promote it. After all, if it is not being promoted, people aren’t going to know about it, and you will be simply wasting your time because you won’t be making any money. The real reason why teenagers smoke is not addiction, it’s weight loss Shunning popular beliefs that people smoke cigarettes because they’re addicted to the nicotine, a recent study shows that among teens who are frequent smokers, 46% of girls and 30%of boys smoke to control their weight. Ramos MOS1 Max – When You’re Big, You Got to be Tough, Too With its name alone, you will know right away that this is one big smartphone and it is exactly that, with its screen measuring 6.44 inches. With its built in battery, you can expect that this can easily support your use for more than a day. But, is size everything there is to Ramos MOS1 Max or do you still have something to look out for in this particular handset? HOW TO BUILD MUSCLE AND STRENGTH WITHOUT LIFTING WEIGHTS Give yourself a break from all the heavy lifting and reap the muscle-building benefits of bodyweight exercise. How to Relieve Stress Through Music Did you know there are simple, easy ways to tackle your stress – without spending a fortune? One of the best ways to relieve stress is through music; and we’ve got the science to back it up. |
553
Copyright © 2017 - 2025
