Sentences with phrase «slight warming effect»

If this is the case, these clouds would reflect more light, which could counteract the slight warming effect described by Grise and his colleagues, said Dennis Hartmann, an atmospheric scientist at the University of Washington in Seattle who was not involved with the new study.

This has a slight warming effect.

There might even be a slight warming effect by water that had passed through the condensors of other ship.

& you seem to be saying CO2 is entirely a COOLING effect, whereas Tallbloke maintains it has a slight warming effect.

CO2's clear fertilizing effect and possible slight warming effect can save the lives of millions, perhaps hundreds of millions, of people living on the margin.

(Look, the models are wrong; CO2 has a slight warming effect, not magnified by water vapor).

Not exact matches

If convection and evaporation were not present, I could see the argument being made that a slight increase in Radiation having some warming effect, however convection and evaporation do exist within the Troposphere and the rate of cooling the two exhibit increases as surface temps increase.

Like Foster and Rahmstorf, Lean and Rind (2008) performed a multiple linear regression on the temperature data, and found that while solar activity can account for about 11 % of the global warming from 1889 to 2006, it can only account for 1.6 % of the warming from 1955 to 2005, and had a slight cooling effect -LRB--0.004 °C per decade) from 1979 to 2005.

Periods of volcanism can cool the climate (as with the 1991 Pinatubo eruption), methane emissions from increased biological activity can warm the climate, and slight changes in solar output and orbital variations can all have climate effects which are much shorter in duration than the ice age cycles, ranging from less than a decade to a thousand years in duration (the Younger Dryas).

It is to be noted here that there is no necessary contradiction between forecast expectations of (a) some renewed (or continuation of) slight cooling of world climate for a few decades to come, e.g., from volcanic or solar activity variations; (b) an abrupt warming due to the effect of increasing carbon dioxide, lasting some centuries until fossil fuels are exhausted and a while thereafter; and this followed in turn by (c) a glaciation lasting (like the previous ones) for many thousands of years.»

These latter two effects are expected to lead to slight warming, but the overall impact of land use changes is expected to be negative (i.e. a cooling)(Myhre and Myhre, 2003), although the uncertainty is still significant (maybe 0.5 W / m2 either way).

Interestingly, the paper «Climate Trends and Global food production since 1980» (Lobell, Schlenker, Costa - Roberts, in Sciencexpress, 5 May, Science 1204531) confirms my finding of the absence of climate change in the USA: «A notable exception to the [global] warming pattern is the United States, which produces c. 40 % of global maize and soybean and experienced a slight cooling over the period... the country with largest overall share of crop production (United States) showed no [adverse] effect due to the lack of significant climate trends».

In contrast, global warming warms nights faster (although the effect is slight) and winters faster than summer (which effect is not slight) so that modern US annually averaged temperatures are greater than those of the 1930s.

So despite over a century of a CO2 - induced warming effect, these other factors helped mitigate this warming effect from about the 1940s to 1970s, resulting in slight global cooling.

In over 6,000 words it covers a wide range of reasons why carbon dioxide can have no warming effect and only a slight cooling effect.

It only becomes significant in the models by assuming that water vapor concentration increases in response to the slight warming produced by CO2 increases and therefore constitutes a powerful positive feedback effect which triples the effect of CO2 by itself.

Evaporation is a Endothermic process which causes a COOLING effect, so the first stage of H2O absorption MUST causes a slight cooling of the oceans which will offset the slight warming of the initial CO2.

While this could easily be reconciled by warming caused by other than CO2, don't we largely know what effects these are and believe them to have an overall slight cooling effect?

You need to prove something out of the ordinary is happening... IT IS N'T, just a slight beneficial warming from solar and ocean effects.

A physicist is no more likely than a sociologist to know what human emissions will be 50 years from now — if a slight warming would be beneficial or harmful to humans or the natural world; if forcings and feedbacks will partly or completely offset the theoretical warming; if natural variability will exceed any discernible human effect; if secondary effects on weather will lead to more extreme or more mild weather events; if efforts to reduce emissions will be successful; who should reduce emissions, by what amounts, or when; and whether the costs of attempting to reduce emissions will exceed the benefits by an amount so large as to render the effort counterproductive.

Thin clouds reflect less sunlight so their net effect may be a slight net warming.

But this also means the slight cooling effect of aerosols is reduced, and the world is a little warmer as a result.

A smaller cooling effect would be expected throughout the northern hemisphere, with a slight warming in the southern hemisphere after a few decades (eg., Vellinga and Wood, 2002; Schiller et al, 1997).

During the late 20th Century the El Ninos has a greater effect on the jet positioning than they do now and the only variable to have changed is the level of solar activity which appears to have coincided with a slight warming of the stratosphere (previously cooling) and an intensification of the inversion at the tropopause which then redirects more energy back downward in the polar high pressure cells.

Re my above comment (# 23)-- I should have stated that volcanic forcing predominantly warms the stratosphere, and has little effect — mainly a slight cooling — on the troposphere due to its ability to reduce the intensity of solar radiation reaching the troposphere and the surface.

If convection and evaporation were not present, I could see the argument being made that a slight increase in Radiation having some warming effect, however convection and evaporation do exist within the Troposphere and the rate of cooling the two exhibit increases as surface temps increase.

Physically, one could expect a slight decrease in surface evaporation (a «dimming» effect) and related changes to precipitation, a warming of the tropopause and lower stratosphere (and changes in static stability), increased Eurasian «winter warming» effects (related to shifts in the wind patterns as are seen in the aftermath ofvolcanoes).

Physically, one could expect a slight decrease in surface evaporation (a «dimming» effect) and related changes to precipitation, a warming of the tropopause and lower stratosphere (and changes in static stability), increased Eurasian «winter warming» effects (related to shifts in the wind patterns as are seen in the aftermath of volcanoes).

That 1.1 C is the IPCC low end «sensitivity» estimate which isn't a scary number at all and in fact is a great number because if that's all it is then the slight warming, mostly in the winter in the higher latitudes, is a great boon to agriculture especially when the biological effect of higher CO2 on green plant growth rates and water consumption is taken into consideration.

He clarified to Campus Reform that many scientists do not argue against slight warming of the Earth after the Little Ice Age (the unusually cool period of the Earth around the 1700s A.D.), nor do those critical of anthropogenic climate change argue that humans have made no impact on the planet, merely that the effect has been small and largely beneficial.

Like Foster and Rahmstorf, Lean and Rind (2008) performed a multiple linear regression on the temperature data, and found that while solar activity can account for about 11 % of the global warming from 1889 to 2006, it can only account for 1.6 % of the warming from 1955 to 2005, and had a slight cooling effect -LRB--0.004 °C per decade) from 1979 to 2005.