Sentences with phrase «by anthropogenic emissions»

This is an order of magnitude smaller than the likely warming induced by anthropogenic emissions over the same time period.

It has hardly been studied so far and is caused by anthropogenic emissions from the combustion of fossil fuels and biomass combined with natural emissions of plants.

Thus, recent evolution of the atmospheric mercury burden, strongly influenced by anthropogenic emissions, could have played a key role in contamination of many ecosystems.

We call on all people and nations to recognize the serious and potentially irreversible impacts of global warming caused by the anthropogenic emissions of greenhouse gases and other pollutants, and by changes in forests, wetlands, grasslands, and other land uses.

Hence, atmospheric GEM concentrations inferred from Greenland firn air and global anthropogenic Hg emissions have exhibited consistently similar trends during the most recent decades (Fig. 2), suggesting that the atmospheric reservoir of mercury at mid - and high - northern latitudes has been driven mainly by anthropogenic emissions during the last decades.

Prof. Murry Salby of the Department of Environment and Geography at Macquarie Universiry in Sydney gave a talk last year (August 3, 2011) to the Sydney Institute (described at Wikipedia), in which he claimed that the rise in atmospheric CO2 is not driven by anthropogenic emissions.

And the acidity of rain can be increased by anthropogenic emissions (i.e. emissions from human activities) with resulting enhanced corrosion and harmful health effects near the emissions.

Mercury (Hg) is an extremely toxic pollutant, and its biogeochemical cycle has been perturbed by anthropogenic emissions during recent centuries.

Any extra carbon that does get vented as a result of climate change, he adds, would be dwarfed by anthropogenic emissions.

may give cause for some to question the wider role of climate change and not solely global warming, that are induced by anthropogenic emissions, changes in land use, water quality etc for which there is direct empirical data in the form of images, and not in mathematical treatments of theory and simulated models.

So when they say that most of the observed increase in globally averaged temperatures since the mid-20th century is «very likely» due to the increase in greenhouse gas concentrations caused by anthropogenic emissions, they mean that there's a > 90 % chance that it is the case.