Most native fishes will suffer population declines and become more restricted in their distributions; some will likely be driven to extinction. Fishes requiring cold water [less than 72 degrees] are particularly likely to go extinct. In contrast, most alien fishes will thrive, with some species increasing in abundance and range.
But on Thursday, conservation groups clinched a settlement that will force the federal government to measure and find ways to minimize impacts from dispersants when they are used to battle oil spills under the California Dispersants Plan.
Colorado Gov. John Hickenlooper (D) signed legislation [PDF] this week that directs him to hire a staff member for his energy office whose job will be to track climate-change issues, help the state brace for global warming's impacts, and offer advice on lowering greenhouse gas emissions.
As the climate changes, the state faces growing hazards from wildfires, bark beetle infestations, declining snowpacks, and drought.
Evidence of climate change is all around us, manifesting in superstorms, wildfires, and melting ice. But temperature spikes recorded by weather stations over the past 15 years have been more muted than was previously the case, and lower than climate models had predicted.
That’s leading many people to wonder: Is global warming less of a threat than we had feared?
Climate scientists have been noting for years that the atmosphere is heating up less quickly than expected. Since last year, a growing number have been suggesting that we adjust our warming projections downward. Just last week, 17 scientists called for exactly that in a letter published in the journal Nature Geoscience; they wrote that their latest projections for rising temperatures remain “in agreement with earlier estimates, within the limits of uncertainty," but at the lower end of that range.
Other international buyers also reacted negatively to the news, with South Korea suspending its tenders to import U.S. wheat and European Union countries being urged to step up genetic testing of American imports. Taiwan said it may seek assurances that all imported wheat from the U.S. is GMO-free, the Wall Street Journal's MarketWatch reports.
Interspecies hanky-panky is a thing, in case you didn't know. Sometimes love, or perhaps a blindly primeval desire to reproduce, can lead one species of animal to breed with another. Think of a liger, for example -- a hybrid of a lion and a tiger. Or a mule, which has a donkey for a father and a horse for a mother. And, every once in a while, an Atlantic salmon will mate with a brown trout.
The U.S. Food and Drug Administration appears poised to approve the sale of genetically engineered AquAdvantage® salmon this year, despite significant aversion to the very idea of the frankenfish. If the transgenic Atlantic salmon escapes into the wild, environmentalists worry that the fast-growing fish could breed with wild Atlantic salmon and throw natural populations into unpredictable turmoil. Which got scientists to wondering: What if transgenic Atlantic salmon got loose and bred with wild brown trout? Could AquAdvantage fish sow their freaky oats over a species barrier?
The answer, according to scientists who ran experiments with the fish, is yes. Yes they can. Not only that, but the hybrid offspring can inherit the turbo growth genes and grow at a remarkable pace, outcompeting both natural salmon and transgenic salmon for food.
When Edmund Hillary and Tenzing Norgay reached the summit of Mount Everest 60 years ago Wednesday, the mountaineers gazed over a view from the top of the world that had never been seen before.
The view has changed since that historic day. Pollution and rising mountain temperatures are relentlessly shearing away at the Himalayas’ frozen facade. Photographs taken around the time of the 1953 expedition show hulking ridges of ice that have since shrunk or disappeared.
Glaciers and snow are melting throughout the sprawling mountain range, which stretches across India, Pakistan, Afghanistan, Bhutan, Nepal, and Tibetan China. The waning glaciers are leaving precarious mountainside lakes of cyan blue water in their wake.
So much of the ice has disappeared that climbers following in Hillary and Norgay's footsteps this spring climbing season, including two octogenarians, are encountering rockier cliff faces that are less stable than the ice that was scaled by the mountain’s first conquerors.
“There is a big change compared to when I first climbed,” says Apa Sherpa, 53, a retired Nepalese mountain guide who scaled Mount Everest a record-setting 21 times from 1990 until 2011. He has lived in Utah since 2006 but still visits Nepal every spring or fall, where he participates in treks and climate campaigns.
He says the landscape changes can be clearly seen from the summit of Everest, which by most measures is the tallest mountain in the world. “It used to be more snow and ice, but now it’s more rock,” Sherpa said. “It’s very dangerous for climbing.”
Temperature increases are greatest in the Himalayas’ higher altitudes, but the most visible changes are occurring at the lower elevations. The mountain range’s white skirt is being hoisted, exposing rocks and hinting at the scale of global glacial losses.
The adage "think global, act local" rings remarkably true in Whatcom County, Wash., a rural area in the northwestern corner of the country.
The seven county council members there will play a big role in deciding how much coal gets dug up in Great Plains states, shipped out of America, and burned by developing countries.
Over the next two years, the council will decide whether to issue two permits needed for the planned $600 million Gateway Pacific Terminal, which would export massive amounts of coal from Wyoming and Montana to Asia. In doing so, these council members will help determine the very future of the world's climate.
So it's a big deal that Whatcom County voters will be electing four council members this November.
A farmer in Oregon found a patch of wheat growing like a weed where it wasn't expected, so the farmer sprayed it with the herbicide Roundup. Surprisingly, some of the wheat survived.
The startled farmer sent samples of the renegade wheat to a laboratory, which confirmed something that should have been impossible: The wheat was a genetically engineered variety that had never been approved to be grown in the U.S., nor anywhere else in the world.