Sentences with phrase «than the century timescale»

[It is helps us to understand what natural forces are currently at work that could be causing changes... But note that some natural forces like the ones that I talked about above work over much longer timescales than the century timescale over which we are making significant changes in greenhouse gas levels.

Significant methane release can occur when on - shore permafrost is thawed by a warmer atmosphere (unlikely to occur in significance on less than a century timescale) and undersea clathrate at relatively shallow depths is melted by warming water.

Not exact matches

Methane (CH4) is an extremely potent greenhouse gas, 20 - 30 times more powerful than carbon dioxide (CO2) on a century timescale.

They also exhibit greater century - timescale variability than is apparent in the other hemispheric series and suggest that the late 15th and the 16th centuries were cooler than indicated by some other data.

Under most scenarios of late 20th century and future anthropogenic radiative forcing, a steady, rather than accelerating, rise in global and hemispheric mean temperature is predicted over timescales of decades.

Methane (CH4) is an extremely potent greenhouse gas, 20 — 30 times more powerful than carbon dioxide (CO2) on a century timescale.

The researches thus «urge extreme caution in attributing short - term trends (i.e. over many decades and longer) in US tropical cyclone losses to anthropogenic climate change,» stating that «anthropogenic climate change signals are unlikely to emerge in US tropical cyclone losses on timescales of less than a century under the projections examined here.»

In terms of longer timescales (decadal to century), once the focus becomes regional rather than global, historical and paleo data becomes more useful than global climate model simulations (no matter what type of «right - scaling» methods are attempted).

But even if so, they make clear that they are using a different process designed more for the purpose than the data you have picked up compiled for the volcano paper, and they allude to this directly: «So while these reconstructions have proved valuable for studying climate variability and the role of various forcing factors acting on relatively short timescales, such as volcanic eruptions [Briffa et al 1998a], they are of limited use for judging the warmth of 20th century warmth in a multicentury context.

It said that globally «the urbanisation influence... is, at most, an order of magnitude less than the warming seen on a century timescale».

I do not regard CO2 stabilization as a robust strategy or an effective one on timescales less than a century

That's why folks who reckon upon timescales greater than one century prefer to rely upon paleo - calibrated energy - balance models.

Conclusion The best available climate - change science plainly tells us that «We don't * WE DO * have to worry about the genuinely dangerous scenarios (e.g. ice sheet collapse, AMOC collapse) on timescales of [more than] a century.»