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| #11 |
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nici nu va dati seama cate lucruri puteti face
treaba cu masina ii fumata
dar puteti sa cumparati produse eco sau sutenabile
putei sa fiti atenti la ambalaje
be aware - trebe sa facem atat de putin si putem influenta atat de mult
puteti sa nu cosumati energie si apa de pomana
si cel mai important e sa spuneti la cat mai multi despre asta
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"me - we" (Muhammad Ali)
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| #12 |
 nagualadminDin: Oradea
Postari: 178
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Ocean and so-called greenhouse gas levels are rising faster than they have for thousands of years, according to two reports published on Thursday that are likely to fuel debate on global warming.
One study found the Earth's ocean levels have risen twice as fast in the past 150 years, signaling the impact of human activity on temperatures worldwide, researchers said in the journal Science.
Sea levels were rising by about 1 millimeter every year about 200 years ago and as far back as 5,000 years, geologists found from deep sediment samples from the New Jersey coastline. Since then, levels have risen by about 2 millimeters a year.
While the planet has been in a warmer period, driving cars and other activities that create carbon dioxide are having a clear impact, the Rutgers University-led team said.
"Half of the current rise ... was going on anyway. But that means half of what's going on is not background. It's human induced," said Kenneth Miller, a geology professor at the New Jersey-based school who led the 15-year effort.
Carbon dioxide emissions come mainly from burning coal and other fossil fuels in power plants, factories and automobiles.
Miller and his colleagues analyzed five 500-meter deep samples to look for fossils, sediment types and variations in chemical composition, giving them data on the past 100 million years.
They also analyzed data from satellite, shoreline markers and by gauging ocean tides, among other measures.
"It allows us to understand the mechanisms of sea level change before humans intervened," Miller said in an interview.
His team did not determine whether the rate is accelerating.
The research, funded mostly by the National Science Foundation, also found ocean levels were lower during the dinosaur era than previously thought. They were about 100 meters higher than now, not 250 meters as many geologists had thought, Miller said.
Measurements also showed that, while many scientists had thought polar ice caps did not exist before 15 million years ago, frozen water at the poles did form periodically.
"We believe the ice sheet was not around all the time. It was only around during cool snaps of the climate," Miller said.
In another report published in Science, European researchers using three large samples of polar cap ice found carbon dioxide levels were stable until 200 years ago.
"Today's rise is about 200 times faster than any rise recorded" in the samples, study author Thomas Stocker said in an e-mail interview with Reuters.
The historic data "put the present rise of the last 200 years into a longer-term context," he added.
Trapped gas bubbles in the ice, drilled out from Antarctica depths of about 3,000 meters, provided scientists with information on the Earth's air up to 650,000 years ago.
Researchers participating in The European Project for Ice Coring in Antarctica measured levels of carbon dioxide as well as methane and nitrous oxide -- two other gases known to affect the atmosphere's protective ozone layer.
"The study does not directly address global warming. But what we provide is an important new baseline for the climate models with which we investigate global warming," said Stocker, a professor of climate and environmental physics at the University of Bern in Switzerland.
source : reuters
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my space dot com : viktor nagual // the dj list : viktor nagual
www.viktornagual.com ..coming soon
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| #13 |
 trakz*Din: Oradea
Postari: 24
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deci...
nagual a scris:
Atunci cand doar tu faci ceva (ex : reciclezi , consumi mai putina apa , poluezi mai putin sau delok) nu se prea simte |
de acord dar credeam ca asta`i logic 
eu nu ziceam ca merg si poluez si eu ca ma doare`n tub si nu ma intereseaza
pixie a scris:
ba e vina masinilor atat cat e si a alora care taie paduri ... uite ca ai avut si tu un drob de egoism in "doara n`o sa te opresti din mers cu mashina" .. da ce are? mori? mishkarea e mai sanatoasa decat crezi ... oricum s`au facut mashini "ecologice" ..
si daca tot se taie, de ce nu se poate planta la loc ? ce`i asha de greu ? |
hmm... ai dreptate undeva.. cel mai normal ar fi sa circulam cat mai multi cu bicicleta si sa faca drumuri, ca multa lume sperie daca trebuie sa mearga in oras cu bicicleta si alege masina :|.. dar acum n`o sa moara lumea daca te urci cateodata pe autobuz sau in taxi daca tre sa grabesti...
iar replantarea padurilor n`ar fi greu deloc, dar acolo chiar nu mai poti sa faci nimic.. cum vrei sa plantezi o padure intreaga de ex. in africa sau in brazilia? sau chiar aici in europa.. (thnk goodness la noi nu e asa de rau situatia cu padurile) :|
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Nimic nu este atat de prost, incat sa nu devina si mai prost.
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| #14 |
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din pacate la noi nu e asa nasol.....INCA
fa tu o excursie in apuseni sa vezi cum taie aia in nestire
numa ca oamenii nu au altceva de facut
discutzia asta e ceva mai lunga....ca trebe sa le gasim la oameni altceva de facut
si taiatul sa fie facut cu cap nu asa sin nestire haotic si exponential
oricum
ii bine ca se discuta despre lucruri din astea
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"me - we" (Muhammad Ali)
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