Sentences with phrase «change in atmospheric composition»

What climate models are is algorithms that predict the consequences of changes in atmospheric composition given our best current theories on radiation, energy transfer, conservation of momentum etc..

Furthermore, the models do not predict future changes in atmospheric composition, do they?

However, overall sensitivities of lifetime to changes in atmospheric composition vary widely from model to model.

With respect to climate change, one has to ask what are the influences on the atmosphere either from changes in atmospheric composition etc. or the places where memory occurs of the accumulated effects: mainly the oceans.

I like how he dismisses atmospheric physics and earth science as inconsequential; and how he rejects not only geological evidence of past change in atmospheric composition but also the carbon cycle and the physics of the greenhouse effect.

And by carefully measuring and modeling the resulting changes in atmospheric composition, scientists could improve their estimate of how sensitive Earth's climate is to CO2, said lead author Joyce Penner, a professor of atmospheric science at the University of Michigan whose work focuses on improving global climate models and their ability to model the interplay between clouds and aerosol particles.

Dynamic climate models (CGCMs) are typically run with prescribed atmospheric composition ot prescribed changes in atmospheric composition, commonly called «scenarios».

At any rate, it seems likely to us that some major and abrupt change in the atmospheric composition and / or molecular structure is occurring at the tropopause.

Then, «by looking at human - induced changes to the landscape, [they] attempt to evaluate the importance of these changes with regard to temperature trends, and determine their significance in comparison to those caused by changes in atmospheric composition,» such as atmospheric CO2 concentration....

The ability to hindcast the detailed changes in atmospheric composition over the past decade, particularly the variability of tropospheric O3 and CO, is limited by the availability of measurements and their integration with models and emissions data.

Past change in atmospheric composition leads to a committed climate change, which continues for as long as a radiative imbalance persists and until all components of the climate system have adjusted to a new state.

First off, there was a well - observed change in the atmospheric composition (a layer of sulphate aerosols in the lower stratosphere).

Other changes in atmospheric composition complicate the picture.

Kevin Trenberth says: «Rather, climate models that run with and without the human - induced changes in atmospheric composition demonstrate that human warming has emerged from natural climate variability since about 1970.»

Radiative effects of anthropogenic changes in atmospheric composition are expected to cause climate changes, in particular an intensification of the global water cycle1 with a consequent increase in flood risk2.

In the 1860's, Tyndall began to suggest that slight changes in the atmospheric composition could bring about climatic variations.

panel cautions that trends in such short periods of record with arbitrary start and end points are not necessarily representative of how the atmosphere is changing in response to long - term human - induced changes in atmospheric composition.

But with the beginning of changes in atmospheric composition, caused by burning fossil fuels mainly, the planet is getting warmer, and sea level has begun to go up, because the ocean is getting warmer and because ice is melting.

[Response: Changes in the atmospheric composition are negligible for their effect on the gas law, but not in terms of radiative transfer, so your conclusion is invalid.]

Changes in climate zone distribution will always be a result of any changes in atmospheric composition that affect the net radiation balance of the entire atmosphere.

Changes in atmospheric composition from human activities are the main cause of anthropogenic climate change by enhancing the greenhouse effect, although with important regional effects from aerosol particulates (IPCC 2007).

In addition to changes in atmospheric composition, land use changes can be a significant factor in causing climate change at the earth's surface.

Carbon dioxide is a greenhouse gas and we can demonstrate clearly that the observed warming of the planet would not have occurred without that change in atmospheric composition.

Changes in atmospheric composition and chemistry over the past century have affected, and those projected into the future will affect, the lifetimes of many greenhouse gases and thus alter the climate forcing of anthropogenic emissions:

Consider the facts: the climate system is indicated to have left the natural cycle path; multiple lines of evidence and studies from different fields all point to the human fingerprint on current climate change; the convergence of these evidence lines include ice mass loss, pattern changes, ocean acidification, plant and species migration, isotopic signature of CO2, changes in atmospheric composition, and many others.

These previous mass extinction events (also known as the «Big Five») are hypothesised to have been caused by combinations of key events such as unusual climate change, changes in atmospheric composition, and abnormally high stress on the ecosystem (except in the case of the Cretaceous, which was caused by an asteroid impact and subsequent effects).

Steve Schneider helped the world understand that the burning of fossil fuels had altered the chemistry of Earth's atmosphere, and that this change in atmospheric composition had led to a discernible human influence on our planet's climate.

The changes in atmospheric composition and surface properties, indicated here, which maintained a global temperature difference of 5 ± 1 °C between the ice age and the interglacial period, are known accurately.