Sentences with phrase «future greenhouse warming by»

Not exact matches

This suggests that the research community has a sound understanding of what the climate will be like as we move toward a Pliocene - like warmer future caused by human greenhouse gas emissions.»

By the way, in my opinion, the elevated greenhouse gas levels already in the air, combined with the future emissions from machines already built, plus increased natural emissions from carbon sinks becoming carbon emitters (i.e. permafrost melting) will cause the rate of warming to top 0.4 C / decade by mid-centurBy the way, in my opinion, the elevated greenhouse gas levels already in the air, combined with the future emissions from machines already built, plus increased natural emissions from carbon sinks becoming carbon emitters (i.e. permafrost melting) will cause the rate of warming to top 0.4 C / decade by mid-centurby mid-century.

It is this background warming from the heat trapped by greenhouse gases that actually accounts for most of the predictability in future temperature change, said Michael Mann, a climate scientist at Penn State.

In contrast to historical droughts, future drying is not linked to any particular pattern of change in sea surface temperature but seems to be the result of an overall surface warming driven by rising greenhouse gases.

Do you think that in the same way that the Solanki et al paper on solar sunspot reconstructions had a specific statement that their results did not contradict ideas of strong greenhouse warming in recent decades, this (the fact that climate sensitivity projections are not best estimates of possible future actual temperature increases) should be clearly noted in media releases put out by scientists when reporting climate sensitivity studies?

They reported that «no catastrophic hurricane of category 4 or 5 intensity has made landfall in the Western Lake [northern Florida] area during the last 130 year documentary record» but «If future climatic changes, whether or not related to the anticipated greenhouse warming, lead to a return of a «hyperactive» hurricane regime characteristic of the first millennium A.D., then the northeastern Gulf Coast is expected to experience a dramatic increase in the frequency of strikes by catastrophic hurricanes.»

This warming was obviously caused by Californian Indians ripping around in SUVs and motorcycles spewing dangerous greenhouse gases with no thought for the future.

«But the other thing I want to point out,» England added, «is that greenhouse gases in the atmosphere are at such high concentrations compared to what they were 100 years ago that you don't need to bring heat back up from the ocean to the surface to get future warming — you just need to slow down the heat uptake by the ocean, and greenhouse gases will do the rest.»

It adopted a moderate anthro - emissions scenario from AR4 as the AGW input, but set arbitrary constraints on its findings by excluding the greenhouse gas outputs» warming from the assessment of the permafrost's rate of melting, and by assuming that only CO2 was emitted - which allowed the projected future output to be stated in simple carbon tonnage.

However, future projections based on theory and high - resolution dynamical models consistently indicate that greenhouse warming will cause the globally averaged intensity of tropical cyclones to shift towards stronger storms, with intensity increases of 2 — 11 % by 2100.

A greenhouse warming may reduce the 1,500 - year cycle aspects, but this provides us with no comfort regarding future prospects since a warming can shortcut the usual circuit, bypassing the usual stage - setting by amplification of the 1,500 - year cycle.

-LSB-...] Future warming of the climate is inevitable for many years due to the greenhouse gases already added to the atmosphere and the heat that has been taken up by the oceans.

A fortuitous future cooling of this amount, due to the Sun, would not fully compensate for the effects of increases in greenhouse gases, which are projected to warm the Earth by 1 to 3 °.

The class assignment was to identify the year for each spot on the globe in which all future years were, according to climate model projections, warmer as a result of greenhouse gas emissions than the warmest year simulated by the models during the historical period 1860 to 2005.

In no place will this internal inconsistency be more obvious than in how the IPCC deals with the discrepancy between the observed effectiveness of greenhouse gases in warming the earth and this effectiveness calculated by the climate models that the IPCC uses to project future climate change.

To be sure, it remains essential to reduce greenhouse gas emissions by strengthening the Kyoto Protocol and augmenting it with other measures; otherwise, the amount of future warming civilization eventually will have to endure will prove too great to survive.

> Scientists probably did not adequately convey to the public that their projections for future warming are based on models that account only for the so - called «forced response» in global mean surface temperatures — that is, the change caused by greenhouse - gas emissions.

Returning to the issue of future projections of aggregate activity (PDI, as in Fig. 1), while there remains a lack of consensus among various studies on how Atlantic hurricane PDI will change, no model we have analyzed shows a sensitivity of Atlantic hurricane PDI to greenhouse warming as large as that implied by the observed Atlantic PDI / local SST relationship shown in Figures 1 (top panel).

By the 1990s, there was a tentative answer: minor solar variations could indeed have been partly responsible for some past fluctuations... but future warming from the rise in greenhouse gases was far outweigh any solar effects.

Dr. David Evans, a former climate modeller for the Australian government's Greenhouse Office, says he found two mathematical errors showing that the IPCC «over-estimated future global warming by as much as 10 times.»

The UN's Intergovernmental Panel on Climate Change (IPCC) no longer claims a greater likelihood of significant as opposed to negligible future warming, It has long been acknowledged by the IPCC that climate change prior to the 1960's could not have been due to anthropogenic greenhouse gases.

Science writer Greg Laden wrote that the Duke study will receive «criticism from climate scientists» because it includes language that suggests it is assessing the likelihood of different warming scenarios by predicting the amount of greenhouse gas emissions that will occur in the future, which it can't possibly know.