Sentences with phrase «large volcanic eruptions increase»

Large volcanic eruptions increase the number of small particles in the stratosphere that reflect sunlight, leading to short - term surface cooling lasting typically two to three years, followed by a slow recovery.

Not exact matches

I would assume that the increase in stratospheric water vapour would make for a thicker vail of sulfuric acid given a large volcanic eruption.

«Barring a large volcanic eruption, a record global temperature clearly exceeding that of 2005 can be expected within the next few years, at the time of the next El Nino, because of the background warming trend attributable to continuing increases of greenhouse gases.»

2) There are errors in the assumed forcings, such as: a) AR5 let stratospheric aerosol concentration go to zero after 2000 (a sure way to prod the models into higher predictions), but it actually increased for the next 10 years «probably due to a large number of small volcanic eruptions».

92) If one factors in non-greenhouse influences such as El Nino events and large volcanic eruptions, lower atmosphere satellite - based temperature measurements show little, if any, global warming since 1979, a period over which atmospheric CO2 has increased by 55 ppm (17 per cent).

There is very high confidence that models reproduce the general features of the global - scale annual mean surface temperature increase over the historical period, including the more rapid warming in the second half of the 20th century, and the cooling immediately following large volcanic eruptions...

Scenario B has continued moderate increase in the rate of GHG emissions and includes three large volcanic eruptions sprinkled through the 50 - year period after 1988, one of them in the 1990s.