Sentences with phrase «large volcanic eruptions»

There were no consecutive large volcanic eruptions in the 20th century, and none that could have caused the recent slowdown in the rate of global warming.

The ash and aerosol clouds from large volcanic eruptions spread quickly through the atmosphere.

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

For example, some scientists have studied the climate response to recent large volcanic eruptions, which can have a measurable impact on global temperatures.

Large volcanic eruptions cool global temperatures, but only for a couple of years.

It was the second largest volcanic eruption of the 20th century.

Acid in the atmosphere can come from large volcanic eruptions and human - made emissions from industry.

Kaiho's team is analyzing climate change caused by large volcanic eruptions that may have contributed to other mass extinctions.

«We have found that the deposition of sulfur compounds in the Antarctic after very large volcanic eruptions in the tropics may be lower than previously thought,» the atmospheric researcher summarizes the findings of the study which has just been published in the current issue of the international «Journal of Geophysical Research — Atmosphere.»

Other dips, such as the one in the mid-1990s, are associated with large volcanic eruptions.

In addition things like large volcanic eruptions are not visible in Nino3.4 but very visible in global SST.

The iconic climate curve, a combination of observed land and ocean temperatures, has quite a few ups and downs, most of which climate scientists can easily associate with natural phenomena such as large volcanic eruptions or El Nino events.

Models reproduce observed continental - scale surface temperature patterns and trends over many decades, including the more rapid warming since the mid-20th century and the cooling immediately following large volcanic eruptions (very high confidence).

Precise synchronization was possible because large volcanic eruptions on the earth can be commonly identified in ice cores due to the presence of high concentrations of sulfuric acid.

Some are of course external — large volcanic eruptions block incoming solar radiation from reaching and being absorved by Earth's surface.

If large volcanic eruptions (Katla 1755, then in the early 1800's Mayon and Tambora) are taken into account, than GP «proxy» has a good track with the CETs for nearly 350 years span.

The drill's filters, which clean water being pumped out of the borehole, became clogged with black dust — «volcanic ashes from some past large volcanic eruption,» speculated Slawek Tulaczyk, a glaciologist from the University of California, Santa Cruz, who has studied this region for two decades and co-leads the drilling project.

«After 2030, the rate of global warming is likely to be so fast that even large volcanic eruptions on the scale of Krakatoa are unlikely to drive a hiatus decade,» says England's colleague, Nicola Maher.

«Sulfate aerosols formed after large volcanic eruptions affect the radiation balance and can linger in the stratosphere for a couple of years,» said Krotkov.

It is also thought that the stick - slip process that frictional melting generates is concurrent to «seismic drumbeats» which are the regular, rhythmic small earthquakes which have been recently found to accompany large volcanic eruptions.

He tells Newsweek the findings play into a bigger picture, where we see large volcanic eruptions having an impact on the global climate that causes a chain effect resulting in social unrest.

Large volcanic eruptions spew huge amounts of sulfate aerosols into the atmosphere, which has been observed to have a cooling effect on Earth.

Because of Io's low gravity, large volcanic eruptions produce an umbrella of debris that rises high into space.

She will then focus on recent results her group obtained with regard to extremely large volcanic eruptions on Jupiter's moon Io, and giant storms on Uranus using Keck Observatory.

Arctic and Antarctic ice cores suggest that this was the world largest volcanic eruption of the past millenium.

The basic science underlying this idea is pretty solid — large volcanic eruptions blast SO2 into the stratosphere where the sulfur aerosols naturally cool the globe for a few years.

Volcanoes Large volcanic eruptions with high SO2 content can release SO2 into the stratosphere.

Large volcanic eruptions eject sulfur dioxide, which rapidly forms tiny particles in the air known as «aerosols» that block sunlight.

Large volcanic eruptions increase the number of small particles in the stratosphere that reflect sunlight, leading to short - term surface cooling lasting typically two to three years, followed by a slow recovery.

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.

Some of the changes in climate are due to short - term factors like large volcanic eruptions that launched tiny particles of sulfuric acid into the upper atmosphere (stratosphere) in 1963, 1982, and 1991.

«The initial idea arose from the fact that we saw an increased reddening of colors in sunsets which followed large volcanic eruptions, particularly Krakatoa,» [Christos] Zerefos, [who led the research at the National Observatory in Athens] said.

Stothers, R.B., 1997: Stratospheric aerosol clouds due to very large volcanic eruptions of the early twentieth century: Effective particle sizes and conversion from pyrheliometric to visual optical depth.