Sentences with phrase «uncertainty over global warming»

That's because their disagreements are not just about interpretations of scientific data, but about how they assess the risks, amid the uncertainty over global warming's future impact.

Not exact matches

I don't think there was much prior uncertainty in the literature over the general notion that orbital forcing changes were an initiating factor and that consequent rises in CO2 contributed a major subsequent warming influence, but the timing (regional vs global) and the interaction between the hemispheres has not been well illuminated.

One reason global warming opponents still have the upper hand is basic confusion over the nature and significance of uncertainty.

You say that this uncertainty is used «to argue that environmental policies based on concerns over global warming are not even worthy of support», but it seems to us that it is less the case that your objection is based on an argument made as much as the fact that they outlined a difference of opinion.

What will reveal a reliable trend in the short - run will not be related to global warming, but where a trend can only be discerned over a much longer period and with much greater uncertainty is going reflect global warming.

The global warming century trend that was observed from 1906 to 2005 was 0.74 °C (with a 90 % uncertainty range of 0.56 °C to 0.92 °C), with more warming occurring in the Northern over Southern Hemispheres, and more over land compared to oceans.

But that is too high a price to pay in part due to the uncertainty over what federal and state governments will do to reduce carbon emissions to combat global warming, the spokesman explained.

Ocean temperature must be measured regularly around the world from the ocean surface to the ocean floor to reduce uncertainty in ocean heat uptake, which accounts for over 90 % of global warming.

But when I look at the single figure in Kevin Trenberth's recent Science paper («Uncertainty in Hurricanes and Global Warming», vol 308, 1753 - 54) the mean SSTA averaged over the tropical Atlantic («10 N to 20 N excluding the Caribbean west of 80 W») sure doesn't indicate recent cooling.

While the window for global decisive action is rapidly closing, climate scientists should not make careless promises about their ability to reduce uncertainties in climate scenarios over the next few years, and thereby provide our governments with excuses to shun their responsabilities until they know more detail about how fast and adverse their regional impacts of global warming will be (compared to those in other countries).

The graph at right shows how much warmer each month is than the annual global mean (derived from the MERRA2 reanalysis over 1980 - 2015 with an uncertainty range).

The global trend from 1861 to 2000 can be cautiously interpreted as an equivalent linear warming of 0.61 °C over the 140 - year period, with a 95 % confidence level uncertainty of ± 0.16 °C.