Sentences with phrase «with additional carbon dioxide»

Not exact matches

Some, like methane, come with the additional downside of having a greenhouse effect 23 times greater than carbon dioxide's.

By 2030, the figure could grow to 14 percent of capacity, a level that would be met with «minimal» additional investments in power transmission and storage, while significantly cutting carbon dioxide emissions from power plants, the draft asserted.

However, a new University of Minnesota study with more than 1,000 young trees has found that plants also adjust — or acclimate — to a warmer climate and may release only one - fifth as much additional carbon dioxide than scientists previously believed, The study, published today in the journal Nature, is based on a five - year project, known as «B4Warmed,» that simulated the effects of climate change on 10 boreal and temperate tree species growing in an open - air setting in 48 plots in two forests in northern Minnesota.

Several experiments with the KOSMOS mesocosms showed that the smallest phytoplankton benefits, if additional carbon dioxide is dissolved in the seawater.

In the meantime, the world's poorest two or three billion people, emitting less than one ton of carbon dioxide per person per year (compared to the 20 tons per - capita average of the United States), could be propelled out of poverty with additional fossil fuel use without substantially interfering with efforts to rein in the richest populations» emissions.

Comparing those with estimates of the total amount of greenhouse gas emissions, they found that each additional metric ton of carbon dioxide sent into the atmosphere reduced the amount of sea ice by three square meters, or about 11 square feet.

An additional benefit for both the community and the rest of the world is that the trees and the soil in their forest contain large quantities of carbon, which bonds with oxygen to form the greenhouse gas carbon dioxide when released into the atmosphere.

The Environmental Protection Acts ratified by the United Kingdom and Australia and the Kyoto Protocol to the United Nations Framework Convention on Climate Change are some examples of attempts to combat deleterious environmental change associated with the release of additional carbon dioxide into the air.

«Business - as - usual» scenarios, with fossil fuel carbon dioxide emissions continuing to increase about 2 percent per year as in the past decade, yield additional warming of 2 or 3 °C this century and imply changes that constitute practically a different planet.

Thawing permafrost also delivers organic - rich soils to lake bottoms, where decomposition in the absence of oxygen releases additional methane.116 Extensive wildfires also release carbon that contributes to climate warming.107, 117,118 The capacity of the Yukon River Basin in Alaska and adjacent Canada to store carbon has been substantially weakened since the 1960s by the combination of warming and thawing of permafrost and by increased wildfire.119 Expansion of tall shrubs and trees into tundra makes the surface darker and rougher, increasing absorption of the sun's energy and further contributing to warming.120 This warming is likely stronger than the potential cooling effects of increased carbon dioxide uptake associated with tree and shrub expansion.121 The shorter snow - covered seasons in Alaska further increase energy absorption by the land surface, an effect only slightly offset by the reduced energy absorption of highly reflective post-fire snow - covered landscapes.121 This spectrum of changes in Alaskan and other high - latitude terrestrial ecosystems jeopardizes efforts by society to use ecosystem carbon management to offset fossil fuel emissions.94, 95,96

That additional acidity gained from carbon dioxide in sea water is affecting many species with calcareous shells and having the most significant effect on hard corals, which also use calcium carbonate to build their home

With warming greater than 2 °C, there is a high risk of abrupt and irreversible changes to ecosystems such as forests, which would lead to «substantial additional climate change» considering that trees sequester significant amounts of carbon dioxide.

An alternative would have been additional runs of the same models with carbon - dioxide reduction assumptions built in, looking at varying rates, varying start times, and different levels of intermittency.

Overall the G8 pathway has cumulative carbon dioxide emissions (2012 — 2100) of 1,485 Gt CO2 for fossil fuels, and 125 for LUCF, with an additional 45 GtCO2 after 2100 assuming continued exponential decline.

The most important greenhouse gases on Earth are water vapor and carbon dioxide, with additional contributions from methane, nitrous oxide, ozone, and others.

This appears to me to comport with the «IEO2011 Reference case projects about 1 trillion metric tons of additional cumulative energy - related carbon dioxide emissions between 2009 and 2035» that you cited in # 143, which clearly states CO ₂ in the sentence.

I took a look at the paper and I notice that for diagnosed emission pathway (DEP) 2.6 which includes moderate capture of carbon dioxide, the additional concentration from permafrost at the end of the twenty - third century (44 ppm) is about the same as at the end of the twenty - first century (39 ppm) so it looks as though it is quite possible to keep up with this effect.

That is, with more carbon dioxide there are additional frequencies along the skirts of the absorption band for which the atmosphere becomes opaque.

[7][8] The vast majority of anthropogenic carbon dioxide emissions (i.e., emissions produced by human activities) come from combustion of fossil fuels, principally coal, oil, and natural gas, with comparatively modest additional contributions coming from deforestation, changes in land use, soil erosion, and agriculture.

This is especially critical because studies have estimated a reduction in Atlantic dust cover of 40 to 60 % under a doubled carbon dioxide climate, which, on the basis of model runs with an equivalent reduction of the mean dust forcing, could result in an additional 0.3 ° to 0.4 °C warming of the northern tropical Atlantic.»