Sentences with phrase «rising aerosols emissions»

Christy is correct to note that the model average warming trend (0.23 °C / decade for 1978 - 2011) is a bit higher than observations (0.17 °C / decade over the same timeframe), but that is because over the past decade virtually every natural influence on global temperatures has acted in the cooling direction (i.e. an extended solar minimum, rising aerosols emissions, and increased heat storage in the deep oceans).

Not exact matches

It might well prove to have been impossible to keep temps from rising more than 1.5 C (because they might have risen above that if we stopped all emissions now — e.g. the lack of aerosols alone might be enough to push temps beyond that).

«While aerosol emissions have fallen in Europe and the US (and in the former Soviet Union after 1991), they are now rising rapidly in China and India.

This means that the «pause,» or whatever you want to call it, in the rise of global surface temperatures is even more significant than it is generally taken to be, because whatever is the reason behind it, it is not only acting to slow the rise from greenhouse gas emissions but also the added rise from changes in aerosol emissions.

There are several reasons for this; for example, aerosol emissions have risen, there has been a preponderance of La Niña events at the end of this timeframe, there has been increased heat storage in the deep oceans, and there was also an extended solar minimum.

In the opposite transition to rapid warming in 1975, once again I am struck by the fact that while aerosol emissions ceased to rise, they did not disappear entirely from the atmosphere, but began a gradual decline from a high peak.

While developed countries and regions have long been culprits for Earth's rising greenhouse gas emissions, Cornell researchers — balancing the role of aerosols along with carbons in the equation — now predict a time when developing countries will contribute more to climate change than advanced societies: 2030.

Now, the only way that a business recession could cause a temporary rise in average global temperatures is for the reduced industrial activity to result in a reduction in the amount of SO2 aerosol emissions into the troposphere.

Over the past decade, aerosol emissions (which cause cooling by blocking sunlight) have risen, solar activity has been low, there has been a preponderance of La Niña events (which also cause short - term surface cooling), and heat has accumulated in the deep oceans.

Rising population and over-grazing by livestock was the first theory but studies now show the drought resulted from changes in ocean surface temperatures Folland et al (1986) Giannini et al (2003) which are likely due in part to the sulphate aerosol pollution of Europe and North America Rotstayn & Lohmann (2002) Biasutti & Gainnini (2006) and thus it is the cleaning of emissions from power stations that has likely allowed the rains to return.

They concluded that with a bit of help from changes in solar output and natural climatic cycles such as the El Nino Southern Oscillation (ENSO), the growth in the volume of aerosols being pumped up power station chimneys was probably enough to block the warming effect of rising greenhouse gas emissions over the period 1998 - 2008.

«In our mor recent global model simulations the ocean heat - uptake is slower than previously estimated, the ocean uptake of carbon is weaker, feedbacks from the land system as temperature rises are stronger, cumulative emissions of greenhouse gases over the century are higher, and offsetting cooling from aerosol emissions is lower.

Posted in Carbon, Development and Climate Change, Environment, Government Policies, Green House Gas Emissions, India, Lessons, Pollution, Research, Resilience, Vulnerability Comments Off on Aerosols Confirmed Rising Over India

A decline in temperature during 1940 - 1970 of about 0.1 oC occurred, despite continuing rise in emissions, due to aerosol reflectance effects and a decline in the sun spot cycle.

Regardless of the cause, which some have attempted to explain as due to industrial aerosol cooling, one can't accuse CO2 emissions of raising global temperatures during a period when there was no such rise.

If we add in the warming effects of the other long - lived greenhouse gases, the best estimate rises to 1.22 °C surface warming caused by human emissions (we've only observed ~ 0.8 °C warming because much of that has been offset by human aerosol emissions).