Sentences with phrase «planetary average warming»

If the 195 nations that signed a climate accord in Paris in 2015 actually honour their collective vow to contain planetary average warming to about 1.5 °C above historic averages, there will still be record - breaking temperatures and more intense extremes of wet and dry — but over a smaller proportion of the globe, according to a new study.

Not exact matches

But for planetary scientists, Jupiter's most distinctive mystery may be what's called the «energy crisis» of its upper atmosphere: how do temperatures average about as warm as Earth's even though the enormous planet is more than fives times further away from the sun?

«The result is not a surprise, but if you look at the global climate models that have been used to analyze what the planet looked like 20,000 years ago — the same models used to predict global warming in the future — they are doing, on average, a very good job reproducing how cold it was in Antarctica,» said first author Kurt Cuffey, a glaciologist at the University of California, Berkeley, and professor of geography and of earth and planetary sciences.

Planetary warming may only be around 1 degree on average, but around the North Pole it's up to 8 degrees above normal.

«Our results suggest that, in contrast to other proposals to increase planetary albedo, offsetting mean global warming by reducing marine cloud droplet size does not necessarily lead to a drying, on average, of the continents.

Consider the quasi-official global goal (codified, for example, in the Copenhagen Accord) to hold total planetary warming to 2 °C (Earth surface average) above pre-industrial levels.

Additionally the oceanic warming and cooling cycles introduce constant, rapid and substantial changes not yet reflected in any models and which invalidate any averaged global estimates of the planetary heat budget.

Average planetary temperatures increased by a «net» of 0.7 degrees C (1.3 F) between 1900 and 2000, as atmospheric carbon dioxide levels continued to rise — but not in a straight line: they rose 1900 - 1940, cooled 1940 - 1975 and warmed 1975 - 1995.

They worked out how these proportions would change if the average planetary temperatures reach 2 °C above the «normal» of the pre-industrial world, and they found that human - induced global warming could already be responsible for 18 % of extremes of rain or snow, and 75 % of heatwaves worldwide.

The close agreement between all five adjusted data sets suggests that it is meaningful to average them in order to produce a composite record of planetary warming.