The time from roughly 15,000 to 5,000 BC was a time of transition, and swift and extensive environmental change, as the planet was moving from an Ice age, towards an interstadial (warm period). Sea levels rose dramatically (and are continuing to do so), land that was depressed by glaciers began lifting up again, forests and deserts expanded, and the climate gradually became more modern. In the process of warming up, the planet saw several "cold snaps" and "warm snaps", such as the Older Dryas and the Holocene climatic optimum, as well as heavier precipitation. In addition, the Pleistocene megafauna became extinct due to environmental and evolutionary pressures from the changing climate. This marked the end of the Quaternary extinction event, which was continued into the modern era by humans. The time around 11,700 years ago (9700 BC) is widely considered to be the end of the old age (Pleistocene, Paleolithic, Stone age, Wisconsin Ice Age), and the beginning of the modern world as we know it. The aggregate of surrounding things, conditions, or influences; surroundings; milieu. Ecology. the air, water, minerals, organisms, and all other external factors surrounding and affecting a given organism at any time.The social and cultural forces that shape the life of a person or a population of an environmental emergency or environmental occurrence, such as an oil or chemical release. The timeline lists events in the external environment that could have influenced events in human history.
Overpopulation is one of the crucial currentenvironmental problem. 4. Natural Resource Depletion: Natural resource depletion is another crucial current environmental problems. Fossil fuel consumption results in emission of Greenhouse gases, which is responsible for global warming and climate change. (read more)
Paris Climate Deal: What You Need to Know
After two weeks of final negotiations in the French capital, 196 nations have come to a new agreement on climate change. In setting ambitious new targets for limiting global warming, it has been called a "historic turning point" that "paves the way to the end of fossil fuels" - although not everyone is embracing the pact. Here is a very brief guide to some of the key elements of the Paris Agreement, and a reminder of some of the reasons so many are so keen to prevent warming from increasing any further. (read more)
UK cancels pioneering £1bn carbon capture and storage competition
Conservative government breaks manifesto promise on project to capture emissions from fossil fuel plants, days ahead of UN climate summit in Paris (read more)
El Niño Paints the World
Unusually strong rains earlier this year set the stage for a widespread flower bloom across the Chilean desert. (read more)
These Ice Cellars Fed Arctic People for Generations. Now They
Native people in Alaska and Russia store their whale meat and other traditional foods in permafrost. But their underground freezers are thawing, causing food problems. (read more)
This Odd-Nosed Antelope Is Experiencing a Mass Die-Off
The critically endangered saiga antelope, a native of the Central Asian steppe, also sports a schnoz with some remarkable abilities. (read more)
Hurrcaine IRMA battered the Florida keys on Sunday after it made landfall in the Caribbean.
With an estimated 127,000 huddling in shelters statewide, the storm lashed the low-lying string of islands with drenching rain and knocked out power to over 1.3 million customers, many of them hundreds of miles from Irma's center. In downtown Miami, one of two dozen construction cranes looming over the skyline collapsed atop a high-rise in Irma's winds. There were no immediate reports of any damage or injuries.
Current Environmental Issues - Pollution
More than half of the human population knows what is pollution, but we are still not ready to face its damaging consequences. Pollution is not only limited to water, soil and noise but has extended to light, visual, point and non-point sources. Human beings and their actions are majorly responsible for causing all types of pollution. Water pollution is essentially cause by oil spills, urban runoff and ocean dumping. Air pollution rises from burning of fossil fuels, hydraulic fracturing and gases emitted by vehicles. Water and soil pollution are majorly cause from industrial waste. (read more)
Climate change is moving mountains
Research points to strong interaction between climate shifts, increased internal movement in the North American St. Elias Mountain Range.
Research points to strong interaction between climate shifts and increased internal movement in the North American St. Elias Mountain Range. The researchers note that the glaciers today are wet-based and are moving, very aggressively eroding material around and out, and in the case of her observation, into the Gulf of Alaska. The tectonic forces (internal plates moving toward one another) continue to move toward Alaska, get pushed underneath and the sediment on top is piling up above the Yakutat plate. (read more)
Surprising Facts About the Antarctic Ice Sheet
If greenhouse gas emissions continue to grow over the next several decades, scientists are predicting that Antarctica's ice sheet will collapse, raising global sea levels by more than 3 feet by 2100.
"That is literally remapping how the planet looks from space," study co-author Rob DeConto, a geoscientist at the University of Massachusetts-Amherst, told Nature.
Here are some facts about the planet's single biggest ice mass, and why it is so important to the planet.(read more)
Carbon and the climate
Earth has many processes that regulate carbon, atmospheric carbon dioxide and its role in the carbon cycle and climate. How much do you know? (read more)
largest proof of our current climate catastrophe ever caught on camera.
Photographer James Balog and his crew were hanging out near a glacier when their camera captured something extraordinary.
They were in Greenland, gathering footage from the time-lapse they'd positioned all around the Arctic Circle for the last several years.
They were also there to shoot scenes for a documentary. And while they were hoping to capture some cool moments on camera, no one expected a huge chunk of a glacier to snap clean off and slide into the ocean right in front of their eyes. (read more)
These 13 U.S. States Saw Carbon Pollution Go Up Over a Decade
As a new UN climate accord nears, countries are pushing to cut carbon emissions. Yet in parts of the U.S., the opposite is happening. (read more)
Smoke From Wildfires Is Killing Hundreds of Thousands of People
And fires like the ones raging in Indonesia can cross mountains and oceans, spreading lung-clogging particles and toxic chemicals. (read more)