Sentences with phrase «between emissions trends»

The latest in the series puts the gap between emissions trends and what is actually required to keep the rise in global temperature at a level which does not spell catastrophe for the planet at between 8 - 12 billion tons of carbon dioxide - equivalent (CO2e) by 2020 — less a gap than a gaping chasm!

Not exact matches

In fact, absent new measures Environment Canada's 2014 emissions trends report projected that oil sands emissions would drive increased emissions from the oil and gas sector of 45 Mt CO2e (to a total of 204 MtCO2e) between 2005 and 2020, offsetting the emission reductions made in other sectors.

«In general there is a clear and strong trend with reduced greenhouse gas emissions in diets that contain less meat,» said lead researcher Peter Scarborough, who added that the study was the first to «confirm and quantify the difference» between diet - related carbon footprints.

If current emissions trends continue (RCP8.5) we could cross the 1.5 °C threshold in 10 to 15 years, somewhere between the years 2025 - 2030, compared to 2045 - 2050 when a 1985 - 2005 baseline is used.

The results, recently published in Science of the Total Environment, is surprising because long - term trends had shown a decrease in mercury emissions whereas data collected between 2007 and 2013 indicate an unsettling upturn from the Rocky Mountains to the Midwest.

In order for Cook to produce the necessary «correlation» between CO2 emissions and the various warming and cooling trends of the last 100 years or so it is necessary to see CO2 as «the dominant forcing.»

Victor @ 28 citing some incredible ass: In order for Cook to produce the necessary «correlation» between CO2 emissions and the various warming and cooling trends of the last 100 years or so it is necessary to see CO2 as «the dominant forcing.»

Researchers at Stanford University who closely track China's power sector, coal use, and carbon dioxide emissions have done an initial rough projection and foresee China possibly emitting somewhere between 1.9 and 2.6 billion tons less carbon dioxide from 2008 to 2010 than it would have under «business as usual» if current bearish trends for the global economy hold up.

They say their findings, which focused on the effect titling had on forest clearing and disturbance in the Peruvian Amazon between 2002 and 2005, suggest that the increasing trend towards decentralized forest governance via granting indigenous groups and other local communities formal legal title to their lands could play a key role in global efforts to slow both tropical forest destruction, which the researchers note is responsible for about the same amount of greenhouse gas emissions as the transportation sector, and climate change.»

The problem is that you expand this to that temperature is responsible for the current trend, which is caused by something else (emissions), while the sensitivity only holds for the variability around the trend and a (small) part of the trend, depending of the temperature difference between begin and endpoint.

«My view is that a Chinese target of a 40 percent reduction in carbon emissions intensity between 2005 and 2020 would be a continuation of historical trends,» said Jim Watson, from the Tyndall Centre for climate change research in Britain [and whose report on China's carbon scenarios we've discussed on this blog; see previous post «Tyndall Centre Climate Report: High Hopes for Low Carbon»].

As far as I am aware that is related to striving for dynamic balance between CO2 emissions to atmosphere and absorptions of CO2 from atmosphere to other parts of environment; and in addition CO2 content trends in atmosphere seem to follow trends of climate temperature and not vice versa; https://judithcurry.com/2017/03/11/scott-pruitts-statement-on-climate-change/#comment-841843

A few other problems: - While there is an extremely good correlation between accumulated emissions and accumulation in the atmosphere, the correlation is less when one looks at the year by year increase, simply because temperature changes have a short term influence (about 4 ppmv/degr.C) on the increase rate, not on the trend!

On current trends, the IPCC finds, emissions will continue to soar and global average temperatures will rise between 2.5 and 7.8 degrees Celsius before the century is out, depending on the pace of economic growth and the sensitivity of the climate system to CO2.

The report found that the gap between emissions levels consistent with meeting the target and levels expected if country pledges are met is likely to be 17 gigatons of CO2 in 2030 based on current trends.

In part 16 of our temperature trend series we take a better look at one of the main reasons almost everyone still underestimates climate urgency: «Thermal inertia» of the climate system — a delay between the moment of emissions of... Continue reading →

Actually Fielding's use of that graph is quite informative of how denialist arguments are framed — the selected bit of a selected graph (and don't mention the fastest warming region on the planet being left out of that data set), or the complete passing over of short term variability vs longer term trends, or the other measures and indicators of climate change from ocean heat content and sea levels to changes in ice sheets and minimum sea ice levels, or the passing over of issues like lag time between emissions and effects on temperatures... etc..

The near - linear rate of anthropogenic warming (predominantly from anthropogenic greenhouse gases) is shown in sources such as: «Deducing Multidecadal Anthropogenic Global Warming Trends Using Multiple Regression Analysis» «The global warming hiatus — a natural product of interactions of a secular warming trend and a multi-decadal oscillation» «The Origin and Limits of the Near Proportionality between Climate Warming and Cumulative CO2 Emissions» «Sensitivity of climate to cumulative carbon emissions due to compensation of ocean heat and carbon uptake» «Return periods of global climate fluctuations and the pause» «Using data to attribute episodes of warming and cooling in instrumental records» «The proportionality of global warming to cumulative carbon emissions» «The sensitivity of the proportionality between temperature change and cumulative CO2 emissions to ocean mixiEmissions» «Sensitivity of climate to cumulative carbon emissions due to compensation of ocean heat and carbon uptake» «Return periods of global climate fluctuations and the pause» «Using data to attribute episodes of warming and cooling in instrumental records» «The proportionality of global warming to cumulative carbon emissions» «The sensitivity of the proportionality between temperature change and cumulative CO2 emissions to ocean mixiemissions due to compensation of ocean heat and carbon uptake» «Return periods of global climate fluctuations and the pause» «Using data to attribute episodes of warming and cooling in instrumental records» «The proportionality of global warming to cumulative carbon emissions» «The sensitivity of the proportionality between temperature change and cumulative CO2 emissions to ocean mixiemissions» «The sensitivity of the proportionality between temperature change and cumulative CO2 emissions to ocean mixiemissions to ocean mixing»

The research looked at growth trends in the aviation industry and calculated that emissions from the sector would rise rapidly between now and 2050, assuming these trends continued.

However, there remains uncertainty in the rate of sea ice loss, with the models that most accurately project historical sea ice trends currently suggesting nearly ice - free conditions sometime between 2021 and 2043 (median 2035).12 Uncertainty across all models stems from a combination of large differences in projections among different climate models, natural climate variability, and uncertainty about future rates of fossil fuel emissions.

According to Stone, cases where the link between human - generated greenhouse gas emissions and local warming trends were weak were often due to the fact that the climate observational record was insufficient in those regions to build a clear picture about what has been happening over the past several decades.

While the study was not set up to find a link between human - emissions and bushfires, the study said the trends were «consistent with projected impacts of climate change on FFDI».

It is nonsense to ignore that clear empirical evidence and then to assume the «longer term trends» indicate anthropogenic emission flowing between rervoirs.

The Asian powerhouse accounts for 33 - 40 % of the emissions gap to 2030 between current trends and a 2C pathway, according to a research note.

Which clearly does a much better job of explaining the long term trend in atmsopheric CO2, even though the correlation between the anthropogenic component and net global emission is precisely zero!

Weak negative correlations were found between the mean annual NCEP RH and cirrus over oceans, but again, most of the data over oceans are in the air traffic corridors where contrail formation and raw aircraft emissions could affect the cirrus trends more than over land because of greater susceptibility in the more pristine marine air.

Later, from 1980 to 2000, the atmospheric trend of GEM concentrations and global estimates of anthropogenic emissions of mercury to the atmosphere (mainly emissions from coal combustion) exhibit a similar trend: a large decrease during the 1980s and then stabilization between 1990 and 2000 (3, 50, 51).

Nicholls et al. [11] tested scenario - driven variations of this «migration factor» with values ranging between one and two and assumed coastward migration to potentially offset falling population trends beyond 2050 for A1 and B1 Special Report on Emissions Scenarios (SRES), resulting in a net increase of population exposed to coastal hazards.

The general trend from 100 BCE to the year 1600 shows a correlation between the increase in the appropriation of land for cultivation and the emission of the biogenic methane.

If present trends in the emission of greenhouse gases continue for 100 years, the group concludes, then resultant human - induced global warming will raise the Earth's average surface temperature between 1.4 and 5.8 degrees Celsius (2.5 and 10.4 degrees Fahrenheit).

The Lawrence Berkeley National Laboratory study suggests economic trends means China's emissions may peak between 2030 and 2035, regardless of government efforts to reduce pollution, the New York Times says.

This can be seen at: The formula used was: dCair = 0.5415 * F (emissions) / 0.21 + 3 * dtemp This resulted in a mean difference of trends (observed - calculated) = 0.00; correlation between the series = 0.65; R ^ 2 = 0.42 (which is poor); stdev of the calculated and observed series = 0.55 ppmv It looks like that the calculated CO2 increase / variations are leading the observed ones.

Global carbon dioxide emissions continue to track the high end of a range of emission scenarios, expanding the gap between current emission trends and the emission pathway required to keep the global - average temperature increase below 2 degrees Celsius.