World at Risk
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World at Risk
Artic climate change Human's causing and solving climate change Tectonic hazards causes
Curated by Elle Mcnally
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Landforms and Landscapes-THC

Landforms and Landscapes-THC | World at Risk | Scoop.it

The causes and impacts of landscape hazards, for example, volcanic eruptions, earthquakes, tsunamis, bushfires, coastal erosion, rip currents, landslides and avalanches


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-4 Pathways to Our Climate Future—Which Will We Choose? | EarthTechling ("a predictable future ahead")-HSCC

-4 Pathways to Our Climate Future—Which Will We Choose? | EarthTechling ("a predictable future ahead")-HSCC | World at Risk | Scoop.it

“ According to the Intergovernmental Panel on Climate Change (IPCC)’s Fifth Assessment Report, we are approaching dangerous territory because of climate change.”All areas of the world have already experienced effects of global temperatures rising, from extreme weather events to record droughts. For the first time in human history, concentrations of carbon dioxide, a global warming pollutant, have hit 400 parts per million in Earth’s atmosphere. Without taking action to reduce greenhouse gas emissions, we can expect to experience a number of escalating consequences, from sea level rise to ecosystem degradation, according to experts. Yet there is still time to reverse course and stave off such catastrophic outcomes. IPCC finds it physically and technically feasible to stay within the world’s “carbon budget” and offers useful tips for climate action. What would the future look like if we took drastic action to cut emissions—or no action at all? Using IPCC data, World Resources Institute created an infographic depicting the likely outcomes of four variable emissions pathways—known as Representation Concentration Pathways—from a low-carbon future to one that is fossil fuel-intensive.


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Bert Guevara's curator insight, August 9, 2014 3:38 AM

With the aid of science, we are no longer acting as fortune tellers to have an idea of the future we are creating for ourselves.

It is up to this generation to determine the kind of future climate we are putting in place for the planet. It is a pity that the future generation will only reap what their parents have sown.

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Methane Blow-Holes Sign of Runaway Climate Change? | EcoWatch ("a point of no return; no kidding!")-HCCC

Methane Blow-Holes Sign of Runaway Climate Change? | EcoWatch ("a point of no return; no kidding!")-HCCC | World at Risk | Scoop.it

“ Scientists think this mysterious crater may be a giant methane blow-hole that signals the beginning of runaway climate change. They are calling the point when frozen arctic methane in Canada, Alaska and Russia starts ...”Scientists think this mysterious crater may be a giant methane blow-hole that signals the beginning of runaway climate change. They are calling the point when frozen arctic methane in Canada, Alaska and Russia starts erupting into the atmosphere dragon burps. If you have ever wondered whether you might see the end of the world as we know it in your life time, you probably should NOT read this story nor study the graphs or look at the pictures of methane blow holes aka dragon burps. I think Dr. Jason Box, who has highlighted the appearance of dangerous spikes in methane above Siberia, sums it up best, “If we don’t get atmospheric carbon down and cool the Arctic, the climate physics and recent observations tell me we will probably trigger the release of these vast carbon stores, dooming our kids’ to a hothouse Earth.”


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Bert Guevara's curator insight, August 7, 2014 12:13 PM

I read about this vast methane threat in the frozen North several years ago. They called it the "point of no return".

Have we reached it?

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Welcome to London – the most toxic town on the planet - The Guardian ("city lifestyle did this")-HCCC

Welcome to London – the most toxic town on the planet - The Guardian ("city lifestyle did this")-HCCC | World at Risk | Scoop.it

“ The Independent Welcome to London – the most toxic town on the planet The Guardian Emissions research from King's College London has found nitrogen dioxide concentrations on Oxford Street to be worse than they are anywhere else on Earth, in the...”Emissions research from King's College London has found nitrogen dioxide concentrations on Oxford Street to be worse than they are anywhere else on Earth, in the history of air pollution. David Carslaw, who led the research, said: "To my knowledge this is the highest in the world in terms of both hourly and annual mean." That's higher than Beijing and Dhaka, higher than anywhere where face masks are the norm and the streets seem to throng with lost medics, and more than 11 times the EU limit. A spokesman for the mayor of London called the figures "misleading", and said that the capital's air pollution was lower than that in many world cities. The fact is, there is too much stop-start traffic, too many tall buildings, too much nitrogen dioxide. But if you were more interested in winning a debate than you are in the air your fellow Londoners were breathing, you could see this as room for manoeuvre. We've become so accustomed to the mantra that businesses and developers are king that we've ceased to even make the demand for some kind of equity between their interests and ours. We're pre-empting the inevitable derision. And that's fair enough: nobody likes to be told no, especially if the refusal is couched in terms that insist upon the pathetic naivety of the request. But these explanations need to be drawn out. The more we get a Boris Johnson exposition on why the cornflake box must be vigorously shaken for the benefit of the uppermost cornflakes, and how the natural superiority of rich people must be preserved by putting them first at all times, the more widely evident its ridiculousness will be.


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Bert Guevara's curator insight, July 10, 2014 11:02 AM

Our planet has one air cover. We can't escape it.

"The problem with air is that you can't privatize it, so it doesn't deliver a natural political win – either by flogging or protecting it – for anyone but the Greens. But it does tell you quite a lot about the ambient political atmosphere, which right now is pretty toxic."

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Human role in climate change now virtually certain: leaked IPCC report-HCCC

Human role in climate change now virtually certain: leaked IPCC report-HCCC | World at Risk | Scoop.it

A leaked draft report by the world’s top climate scientists has found that is virtually certain that humans are causing climate change but parts of it have been wildly misinterpreted by climate change deniers, experts said.

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The World's Top Scientists Demand: Take Action Now On Climate Change-HSCC

The World's Top Scientists Demand: Take Action Now On Climate Change-HSCC | World at Risk | Scoop.it

Two of the world’s most prestigious science academies say there’s clear evidence that humans are causing the climate to change.

The time for talk is over, says the US National Academy of Sciences and the Royal Society, the national science academy of the UK.

The two released a paper, Climate Change: Evidence and Causes, written and reviewed by leading experts in both countries, lays out which aspects of climate change are well understood and where there is still uncertainty and a need for more research.

 

Sir Paul Nurse, President of the Royal Society and Nobel Prize winner, said: "We have enough evidence to warrant action being taken on climate change; it is now time for the public debate to move forward to discuss what we can do to limit the impact on our lives and those of future generations.”

 

NAS President Ralph J. Cicerone said: “As two of the world’s leading scientific bodies, we feel a responsibility to evaluate and explain what is known about climate change, at least the physical side of it, to concerned citizens, educators, decision makers and leaders, and to advance public dialogue about how to respond to the threats of climate change.”

 

Carbon dioxide (CO2) has risen to levels not seen for at least 800,000 years, and observational records dating back to the mid-19th century show a clear, long-term warming trend. The publication explains that measurements that distinguish between the different forms of carbon in the atmosphere provide clear evidence that the increased amount of CO2 comes primarily from the combustion of fossil fuels, and discusses why the warming that has occurred along with the increase in CO2 cannot be explained by natural causes such as variations in the Sun’s output.

 

Many effects of climate change have already become apparent in the observational record, but the possible extent of future impacts needs to be better understood. For example, while average global sea levels have risen about 20 cm since 1901, and are expected to continue to rise, more research is needed to more accurately predict the size of future sea-level rise.

 

In addition, the chemical balance of the oceans has shifted toward a more acidic state, which makes it difficult for organisms such as corals and shellfish to form and maintain their shells.

 

As the oceans continue to absorb CO2, their acidity will continue to increase over the next century, along with as yet undetermined impacts on marine ecosystems and the food web.

 

Even if greenhouse gas emissions were to suddenly stop, it would take thousands of years for atmospheric CO2 to return to its levels before the industrial era. If emissions continue unabated, future climate changes will substantially exceed those that have occurred so far, the publication says.

 


Via Dr. Stefan Gruenwald
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Climate Change and the Insanity of Drilling in the Arctic-ACC

Climate Change and the Insanity of Drilling in the Arctic-ACC | World at Risk | Scoop.it
DAVID SUZUKI — With all we know about climate change and what’s happening in the Arctic, you’d think our leaders would be marshaling resources to at least slow it down. Instead, industry and governments are eyeing new opportunities to ...

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Emperor penguins declining, but how is climate change affecting other arctic ... - Tech Times-ACC

Emperor penguins declining, but how is climate change affecting other arctic ... - Tech Times-ACC | World at Risk | Scoop.it
Tech Times
Emperor penguins declining, but how is climate change affecting other arctic ...
Tech Times
Leopard seals and killer whales hunt emperor penguins, but those animals are facing their own challenges in the warming environment of Antarctica.

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Laura Coles's curator insight, August 23, 2015 8:38 AM

Too little ice reduces the habitat for krill, a critical food source for emperor penguins. If the krill are too decline, then the emperor penguins are to reduce. this is not only a problem for the penguins, but a problem for the animals higher up on the food chain. Mammals like leopard seals and orcas depend on the penguins as their food source.

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Scientists ‘95 per cent certain’ that climate change is man-made-HCCC

Scientists ‘95 per cent certain’ that climate change is man-made-HCCC | World at Risk | Scoop.it
Scientists are more certain than they have ever been that humans are causing climate change and believe that sea levels could rise by up to 2ft 8in by the end of the century.

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Laura Coles's curator insight, August 23, 2015 8:57 AM

The impacts of humans causing climate change has warmed the ocean, melted snow and ice, raised global mean sea level and changed some climate extremes. Research has shown that seas will rise by between 29cm and 82cm by the end of the century, while greenhouse gas emissions continue to soar. 

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Beijing to enforce use of clean coal in anti-pollution drive ("low-sulphur coal but carbon-filled?")-HSCC

Beijing to enforce use of clean coal in anti-pollution drive ("low-sulphur coal but carbon-filled?")-HSCC | World at Risk | Scoop.it

“ SHANGHAI (Reuters) - China's capital city, Beijing, will enforce the use of cleaner low-sulphur coal from Aug. 1 in a bid to tackle the soaring levels of air pollution that frequently clog the country's”This is the first time China has enforced the use of low-sulphur coal across all industries to tackle pollution. Air quality in cities is of increasing concern to China's stability-obsessed leaders, anxious to douse potential unrest as a more affluent urban population turns against a growth-at-all-costs economic model that has poisoned much of the country's air, water and soil. A Xinhua editorial earlier on Saturday called for China's population to "rein in their craze" for excessive consumption to help solve the country's growing environmental issues. Beijing has previously established an array of laws and rules to battle the environmental consequences of three decades of unchecked growth, but weak monitoring and punishment make it tough to get powerful industrial interests to comply. China unveiled plans at the end of last year to slash coal consumption and close polluting mills, factories and smelters to cut air pollution. Beijing has also been pushing the country's steelmakers and power plants to buy higher-quality raw materials to meet tougher pollution targets.


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Bert Guevara's curator insight, July 12, 2014 11:49 PM

I wouldn't want to be in the position of China right now. Even if they lower the sulfur content of coal, how about the nitrogen oxide and the carbon? Slowing down a coal-powered economy is difficult to do in the short term.

This is why I am questioning the coal-based energy solution of the Philippine government.

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Beijing To Fight Pollution With Coal Ban ("unmasking the masterminds and putting them out of business")-HSCC

Beijing To Fight Pollution With Coal Ban ("unmasking the masterminds and putting them out of business")-HSCC | World at Risk | Scoop.it

“ BEIJING (AP) — China's smog-plagued capital has announced plans to ban the use of coal by the end of 2020 as the country fights deadly levels of pollution, especially in major cities. Beijing's Municipal Environmental Protection Bureau posted ...”Beijing's Municipal Environmental Protection Bureau posted the plan on its website Monday, saying the city would instead prioritize electricity and natural gas for heating. The official Xinhua News Agency said coal accounted for a quarter of Beijing's energy consumption in 2012 and 22 percent of the fine particles floating in the city's air. Motor vehicles, industrial production and general dust also contributed to pollution in the 21 million-person city. Even with the Beijing ban, coal use is expected to soar in China. Coal-fired power and heating is a major generator of greenhouse gases and has helped turn China into the world's largest emitter of carbon and other heat-trapping gases. Pressure is growing on China's central government to clean up the country's polluted environment, as discontent over smog and water and soil contamination increases among China's expanding middle class. The central government recently listed environmental protection as one of the top criteria by which leaders will be judged. In September, the government announced a prohibition on new coal-fired power plants around Beijing, Shanghai and Guangzhou.


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Bert Guevara's curator insight, August 5, 2014 12:00 PM

Cutting the use of coal is like quitting cigarette smoking. It has to be quick and absolute.

China has run out of excuses for pollution caused by coal. They can no longer use cheap fuel as an alibi.

 

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Solving Climate Change By Bioengineering Humans? - Slashdot-HSCC

Solving Climate Change By Bioengineering Humans? - Slashdot-HSCC | World at Risk | Scoop.it
derekmead writes "Forget CFLs, hybrid cars, and organic jeans. Buying our way out of climate change — even if it's green consumption — won't get us far.
A new paper (PDF), published in Ethics, Policy, and the Environment by NYU bioethics professor S.

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Climate Change: 'Abrupt,' 'Unpredictable,' 'Irreversible' and 'Highly Damaging' | BillMoyers.com -HCCC

Climate Change: 'Abrupt,' 'Unpredictable,' 'Irreversible' and 'Highly Damaging' | BillMoyers.com -HCCC | World at Risk | Scoop.it

In a rare move, the world’s largest scientific society released a report nudging the public to wake up to the scientifically sound and increasingly frightening reality of climate change.

 

“As scientists, it is not our role to tell people what they should do or must believe about the rising threat of climate change,” the American Association for the Advancement of Science (AAAS) wrote in the introduction to its new report, “What We Know.” “But we consider it to be our responsibility as professionals to ensure, to the best of our ability, that people understand what we know: human-caused climate change is happening, we face risks of abrupt, unpredictable and potentially irreversible changes and responding now will lower the risk and cost of taking action.”

 

“They are very clearly saying that we as the scientific community are completely convinced, based upon the evidence, that climate change is happening and human-caused,” said Dr. Anthony Leiserowitz, the director of the Yale Project on Climate Change Communication. “The more people understand that the experts have reached this agreement, the more they in turn decide, ‘well, then I think it’s happening, and I think it’s human-caused, and I think it’s a serious problem, and in turn it increases people’s support for policy.”

 

The report noted that even though 97 percent of experts agree climate change is happening and we humans are causing it, Americans remain under the impression that the question is still unsettled. According to a 2013 report by the Yale Project on Climate Change Communication, 33 percent of Americans said they believed there was widespread disagreement among scientists and four percent said that “most scientists think global warming is not happening.” Only 42 percent of Americans knew that “most scientists think global warming is happening.”

 

These numbers suggest that disinformation circulated by the fossil fuel industry, utility companies and their political and media allies has successfully confused the public about the truth of global warming. Spreading the perception that scientists are still undecided is key to their strategy.

 

Click headline to read more--

 


Via Chuck Sherwood, Senior Associate, TeleDimensions, Inc
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A Complex Constellation: Displacement, Climate Change and Arctic Peoples-ACC

A Complex Constellation: Displacement, Climate Change and Arctic Peoples-ACC | World at Risk | Scoop.it
The Arctic environment and its indigenous peoples have always been closely intertwined. Elizabeth Ferris examines how climate change is altering this relationship and forcing indigenous peoples to reevaluate their livelihoods.

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Polar expeditions: walking on thin ice - Campden FB-ACC

Polar expeditions: walking on thin ice - Campden FB-ACC | World at Risk | Scoop.it
Guardian Liberty Voice Polar expeditions: walking on thin ice Campden FB Polar bears sitting atop shrinking ice floes have become a symbol of climate change, with the average temperature in the Arctic rising almost twice the average rate of the...

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Laura Coles's curator insight, August 23, 2015 8:47 AM

The average temperature in the Arctic rising almost twice the average rate of the rest of the world. Already climate change is triggering an earlier Arctic snow-melt and sea ice break up, as well as altering ocean currents. 

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Changing Arctic Climate Could be Catastrophic for Marine Food Chain - Nature World News-ACC

Changing Arctic Climate Could be Catastrophic for Marine Food Chain - Nature World News-ACC | World at Risk | Scoop.it
Nature World News Changing Arctic Climate Could be Catastrophic for Marine Food Chain Nature World News Changing climate conditions impact all sorts of marine life along the West Antarctic Peninsula, from single-celled algae to penguins, sending...

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Laura Coles's curator insight, August 23, 2015 8:25 AM

Maintaining balance in the Antarctic marine food chain is dependent on a negative phase of the "Southern Annular Mode," or SAM. This is the shift in atmospheric pressure between mid-latitudes and Antarctica. During the wintertime, a negative SAM means hefty winds and heavy sea ice followed by a calm spring and stable water column in summer. Once the winds die down come summer, it delays ice retreat. The entire food chain is dependent on this SAM pattern. 

With the climate changing and temperatures warming, the balance is changed. This impacts the Antarctic food chain.