Sentences with phrase «of massive volcanic eruptions»

He and his collaborators employed both simple and complex computer models in early studies of the role of clouds in climate change, and in research on the climatic effects of massive volcanic eruptions.

About 66 million years ago there was a series of massive volcanic eruptions in southern India known as the Deccan Traps.

Not exact matches

Some of the more extreme forecasts made for this time period include alien visitations / invasions, catastrophic asteroid impacts, violent volcanic eruptions and massive earthquakes.

According to the Toba catastrophe theory, a massive volcanic eruption changed the course of human history by severely reducing the human population.

If mimicking a massive volcanic eruption by spraying sulfur dioxide into the air or flying thousands of mirrors into space to shade Earth to halt climate change doesn't cut it for you, how about this?

Scientists think that massive volcanic eruptions killed off more than 90 % of ocean species and 75 % of land species almost 252 million years ago.

The first extinction pulse has been tied to massive volcanic eruptions in India, the second to the impact of an asteroid or comet on Mexico's Yucatan Peninsula.

Pore spaces that shelter subsurface microbes areconstricted to the vanishing point in metamorphic rocks buried over eons byfurther sedimentation, volcanic eruptions, or massive folding of Earth's crust.And dense crystalline material formed by melting — basic igneous rock — offerslittle housing or dining.

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.

They suggest the «little chill» started with a 50 - year episode of four massive tropical volcanic eruptions.

Ian Plimer in another contrarian tome included some even more made up facts: «massive volcanic eruptions (e.g. Pinatubo) emit the equivalent of a years» human CO2 emissions in a few days» (p472) and «Volcanoes produce more CO2 then the world's cars and industries combined» (p413).

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.

A series of three massive volcanic eruptions detected on the surface of Jupiter's moon Io in August last year, has the potential to yield insights into the formation process of the surface of Earth - like planets.

What if a volcanic eruption on the moon Io resulted in a massive raining down of sodium chloride in which a future exploratory party from Earth was caught up and their space - to - surface vehicle destroyed?

In the second millennium BCE, massive volcanic eruptions on Santoríni collapsed the island into a fractured caldera possibly contributing to the collapse of Minoan civilization on nearby Crete.

These huge, eerie tunnels were created by lava draining through the landscape following a massive volcanic eruption thousands of years ago, and you can wander through them.

In 1912 there was a massive volcanic explosion from Novarupta area of Mount Katmai that is considered to be the largest eruption of the 20th Century.

Soemantoro's lithographs convey her reaction to the various stages of volcanic eruptions, from the initial rumblings and steam explosions, through the massive explosive eruptions of magma, lava flows, and, finally, the silence after the chaos subsides.

Evidence for this abrupt climate change points to a massive eruption of the volcanic precursor of Krakatoa.

This massive eruption probably had a volcanic explosivity index of six, which is equivalent to that of the 1883 eruption of Krakatoa.

Even during the PETM, it took extended volcanic eruptions on a massive scale that were extensive but not of the kind to eject significant stratospheric sulfates so as to cause cooling.

Several massive volcanic eruptions in Siberian Traps, described above, started warming of the atmosphere.

(Last week's Calbuco eruption in Chile spews massive cloud of ash and sets off a fireworks display of volcanic lightning.

The massive volumes of volcanic debris deposited in the Spirit Lake and the Toutle River system during the 1980 eruption of Mount St. Helens in southwest Washington State drastically changed the region and left its 50,00... More >>

-- CO2 was 1200 - 1800 ppm (mostly volcanic — Cretaceous eruptions were «truly massive in scale and persisted for thousands of years.»)

On the volcanoes question, they * can * release massive amounts of CO2 — it's thought that ultra-huge volcanic eruptions in the past have been responsible for unleashing warming episodes via CO2 release.

Second, there were several volcanic eruptions that released massive amounts of sulfur dioxide into the atmosphere.

Similarly, if global temperatures drop for some reason (for example, a large volcanic eruption dumping massive amounts of aerosols into the air), we should expect to see water vapor concentrations decrease.