Sentences with phrase «volcanic activity»

A drop of volcanic activity in the early 20th century may have had a warming effect.

I have heard it said that periods of severe volcanic activity in the geological past increased global temperatures by emitting substantial volumes of greenhouse gases.

They're typically formed from by volcanic activity and can reach 1,000 metres high.

For example, reconstructions suggest decreased solar activity and increased volcanic activity in the 17th century as compared to current conditions.

There are over 150 beaches on the island ranging from fine, white sand to black volcanic rock from volcanic activity ranging back thousands of years.

Researchers have found that glacial erosion and melting ice caps both played a key role in driving the observed global increase in volcanic activity at the end of the last ice age.

This collection explores the historical records of climate and ecological change associated with volcanic activity, as well as the factors that control the climate effects of an eruption.

Recent volcanic activity has affected many European travel plans and has most travelers asking how it impacts travel insurance.

So, if lower volcanic activity during a period allows the concentrations aerosols to fall, more energy gets into the earth system, thus generating more heat.

The earth during periods of high volcanic activity results in a significant increase in A: CO2....

Some proposed they're related to periods of intense volcanic activity, others that they were caused by continental drift and periods of mountain building.

There is so much that we don't understand about volcanic activity beneath the sea.

Conventional thought is that the warming sun and reduced volcanic activity caused much of the early 20th Century warming.

The ongoing volcanic activity has had negative impacts on the island's tourism, including causing flight disruptions.

Those «dramatic later events» have been revealed to be a stretch of significant volcanic activity between 40 and 50 million years ago.

I think volcanic forcing is on a warming trend, because volcanic activity is weighted towards the beginning of the 30 year period.

Scientists use the volcanic ash found in ice cores to date the cores and to estimate the intensity of past volcanic activity.

So with less volcanic activity, you'd expect to see more warming.

It was created by volcanic activity which started less than 10 million years ago.

I knew that we were seeing an unusual amount of volcanic activity around the planet so far this year.

No one will be able to predict what volcanic activity there will be.

What we do know is that the proposed forcing mechanisms — solar variability and mean volcanic activity — are small.

The marked lack of volcanic activity over the last 20 years was irrelevant.

First, layers of lava show that climate - warming volcanic activity slowed down at this time.

They also studied volcanic activity in the 1800s but found that this only contributed a small part to the onset of climate change compared to human activity.

But solar output fell, while volcanic activity and aerosol pollution rose.

This is apparent when comparing atmospheric CO2 levels to volcanic activity since 1960.

Just what triggered this enormous emission is not known, but scientists suspect volcanic activity may have begun the process.

There are specific physical candidates that may explain the difference, for example volcanic activity, proper representation of ocean temperatures, and variability in ocean processes.

Because actual volcanic activity CAN produce a real effect, while its absence can not.

This time around the virus will be spread by volcanic activity throughout the countryside.

Base and final periods are selected that have well matched volcanic activity and influence from internal variability.

The lack of beaches, endless volcanic activity, and untouched diving sites makes this a very special destination.