Sentences with phrase «effects of the volcanic eruption»

In this case, researchers are attempting to re-create the effects of volcanic eruptions to artificially cool Earth.

In addition to forecasting the weather, the authors hope that these insights will lead to improved models for global warming, ozone depletion and the effects of volcanic eruptions.

The atmospheric effects of volcanic eruptions were confirmed by the 1991 eruption of Mount Pinatubo, in the Philippines.

A new reconstruction of Antarctic ocean temperatures around the time the dinosaurs disappeared 66 million years ago supports the idea that one of the planet's biggest mass extinctions was due to the combined effects of volcanic eruptions and an asteroid impact.

The team also showed for the first time that this recovery has slowed somewhat at times, due to the effects of volcanic eruptions from year to year.

But the simulations also reveal that the technique, which mimics the short - term cooling effects of volcanic eruptions, could chill the planet if overdone.

Here, we show that the effective solar radiation (ESR), which includes the net solar radiation and the effects of volcanic eruption, has modulated this decadal ENSO - like oscillation.

The effects of the volcanic eruption that took place in 1963 are still evident along the lower slopes.

Grow some trees under controlled conditions over here; grow some over there under identical controlled conditions, and then simulate the weather - effects of a volcanic eruption on one set of trees.

In fact, climate models are tested against historic trends, both near history and distant history, and then tested against specific events, such as the effects of volcanic eruption.

University of Alabama - Huntsville climate scientists John Christy and Richard McNider found that by removing the climate effects of volcanic eruptions early on in the satellite temperature record showed virtually no change in the rate of warming since the early 1990s.

Climate effects of volcanic eruptions.

For example, the accumulated effect of volcanic eruptions during the past decade, including the Icelandic volcano with the impossible name, Eyjafjallajökull, may have had a greater cooling effect on the earth's surface than has been accounted for in most climate model simulations.

Natural variations in climate include the effects of cycles such as El Niño, La Niña and other ocean cycles; the 11 - year sunspot cycle and other changes in energy from the sun; and the effects of volcanic eruptions.

New UBC research shows that climate change may impede the cooling effect of volcanic eruptions.

«Because the effects of volcanic eruptions and of ENSO are very short - term and that of solar variability very small, none of these factors can be expected to exert a significant influence on the continuation of global warming over the coming decades.

The concept largely focuses on the idea of dispersing chemicals such as sulfates high in the atmosphere so they could reflect sunlight in a manner that would mimic the effect of volcanic eruption.

Not exact matches

Besides knowing a lot more about the transport of volcanic aerosols in the atmosphere, modern researchers had communications lines and satellites so that news of an eruption could be relayed quickly and the effects noted as they unfolded.

Benca irradiated 18 - inch - tall, bonsai - like pines with UV - B dosages up to 13 times stronger than on Earth today, simulating the effects of ozone depletion caused by immense volcanic eruptions that occurred at the end of the Permian Period.

Besides SSCE, scientists have also been investigating stratospheric sulfur injections — firing sun - reflecting aerosols into the air, similar to the cooling effect after a volcanic eruption — and cirrus cloud thinning, where you thin the top level of clouds, which have a warming effect on the planet.

Proposals to reduce the effects of global warming by imitating volcanic eruptions could have a devastating effect on global regions prone to either tumultuous storms or prolonged drought, new research has shown.

Sustaining fresh water and energy resources; mitigating the effects of natural hazards such as earthquakes, volcanic eruptions, severe weather, landslides, coastal erosion, and solar flares; and dealing with the consequences of global warming and sea - level rise are issues that affect all populations, regardless of gender, ethnicity, or cultural traditions.

The new movie «Pompeii» reconstructs one of the most famous volcanic eruptions in history with unprecedented «3D» special effects — but even the best visuals can't help if the science is wrong — so how geological accurate is the movie?

To determine whether declining pollutants deserve credit for the recovery, the researchers used a 3D atmospheric model to separate the effects of the chemicals from those of weather, which can affect ozone loss through winds and temperature, and volcanic eruptions, which deplete ozone by pumping sulfate particles into the upper atmosphere.

Major volcanic eruptions can have a significant effect on the flow of the biggest rivers around the world, research shows.

Volcanic eruptions and solar variations were still plausible causes of change, and some argued these would swamp any effects of human activities.

First, volcanic eruptions produce major quantities of carbon dioxide (CO2), a gas known to contribute to the greenhouse effect.

Interestingly, some scientists argue that without the cooling effect of major volcanic eruptions such as El Chichn and Mount Pinatubo, global warming effects caused by human activities would have been far more substantial.

Researchers know that large amounts of aerosols can significantly cool the planet; the effect has been observed after large volcanic eruptions.

Some geologists speculate that massive volcanic eruptions covering areas as large as modern continents triggered the release of methane buried in the ocean floor, causing a greenhouse effect.

For the first time, this study allowed researchers to analyse the effects of the climate change on the forest nutrient cycles, and states that Pyrenean forests can register these episodes chemical mark at a global scale (for instance, volcanic eruptions in remote areas) and the effects of gas emissions into the atmosphere since the Industrial Revolution.

Scientists have long known of the cooling effect of major volcanic eruptions, which spew large amounts of light - scattering aerosols into the stratosphere.

A few years ago, he was trying to get people to take to his idea of how to mitigate global warming by pumping sulfur dioxide into the stratosphere, mirroring the cooling effect caused by large volcanic eruptions.

It's also now well understood that large volcanic eruptions have a short - term cooling effect, see GW FAQ: effect of volcanic activity (short - term being the key phrase, after Church et al Nature 2005, and also http://www.llnl.gov/str/JulAug02/Santer.html)

But despite that steady climb, not every year is warmer than the one before it, thanks to the vagaries of weather, the influence of natural climate cycles, and the effects of events like volcanic eruptions.

«The researchers also calculated the likely effect of remediation on the ozone layer, but found that ozone depletion would be short - lived and similar to that resulting from natural processes such as large solar storms and volcanic eruptions.»

It is also well known that volcanic activity has a cooling influence, and as is well documented by the effects of the 1991 Mount Pinatubo volcanic eruption.

Volcanic eruptions and impacts from celestial bodies, like asteroids, have a near instantaneous effect, but very few of these one - time events are of sufficient size to impact the global climate for more than a few years.

In Earth's past the trigger for these greenhouse gas emissions was often unusually massive volcanic eruptions known as «Large Igneous Provinces,» with knock - on effects that included huge releases of CO2 and methane from organic - rich sediments.

«While volcanic eruptions are natural events, it was the timing of these that had such a noticeable effect on the trend.

The effects of aerosol injections are at least somewhat known, since volcanic eruptions produce aerosols naturally and have produced cooling in the past.

Contains - Alphabet (topic word for each letter)- Comic Summary (read a story and summarise it in comic form)- Hand (research a volcano in history and pull out main facts)- Imagination (descriptive writing prompt)- One Sentence Only (summarise each paragraph in a chosen text)- Positive and Negative effects (foldable sorting effects of volcanoes)- Storyteller (narrative writing prompt)- Structure of a volcano (information sheet for students to create a volcano diagram)- Types of volcano (foldable that involves matching names, description and picture)- Volcanic Eruptions Comprehension (information passage with questions)- Volcano cloze (information text with missing words about volcanoes)- Volcano explorer (gathering information from interactive voclano website)- Volcano Vocabulary (foldable involving matching topic words to definitions)- Witness vs. Scientist (foldable involving sorting statements)

A couple links to articles on the effect of major volcanic eruptions on global climate, particularly relevant given the possible / probably / imminent eruption of Mt. Agung:

A submarine landslide might release a Gigaton of carbon as methane (Archer, 2007), but the radiative effect of that would be small, about equal in magnitude (but opposite in sign) to the radiative forcing from a volcanic eruption.

Do you know about, or can you refer me to someone who may know about, the climate effects of the other Tambora - scale volcanic eruption (VEI = 7) of the last millenium — from Changbaishan (Baitoushan) on the China - NKorea border (42oN latitude) sometime between 960-1025 AD?

What I am saying is that it makes no sense at all to hand - wave at the effects of uncontrolled volcanic eruptions as «absolute proof» that geoengineering schemes «can work», while promoting a gradual 50 - year phaseout of GHG emissions (which is too slow to have any hope of preventing catastrophic outcomes) as «logical» (whatever that means) and ignoring the multiple studies that show we can easily phase out emissions in a fraction of that time with the proven technologies that are already at hand.

In other words, if we are after a cause (or causes) for the temperature increase during the period in question, the presence or absence of aerosols from volcanic eruptions is beside the point, because they can not explain any increase in temperatures that occurred prior to any cooling effect they might have had.

Putting my geologist's hat on, it is certainly plausable that (for instance) the passage of a low pressure system could bring forward an explosive volcanic eruption by a few hours; but extra precipitation reaching a magma chamber, or just lubricating faults around the chamber would be a bigger effect.

One of the things I'm having trouble with is the uncertainties of aerosals and their effects on cooling, or the possibility of volcanic eruptions producing particles that result in cooling.

For example, without understanding impacts of other forcings, predicting the effects of large volcanic eruption would not be possible.