The latest report by the IPCC, the international organization tasked with assessing the science of climate change and its impacts, predicts that in order to keep the increase in
average global surface temperature under 3.6 degrees Fahrenheit (2 degrees Celsius), total future CO2 emissions can not exceed 1 trillion tons.
Not exact matches
With an El Niño now
under way — meaning warm
surface waters in the Pacific are releasing heat into the atmosphere — and predicted to intensify, it looks as if the
global average surface temperature could jump by around 0.1 °C in just one year.
Under the Paris Agreement reached in 2015, countries will take stock at five - year intervals of their progress in limiting greenhouse gas emissions to curb the rise in
global average near -
surface temperatures.
Maps show projected change in
average surface air
temperature in the later part of this century (2071 - 2099) relative to the later part of the last century (1970 - 1999)
under a scenario that assumes substantial reductions in heat trapping gases (B1) and a higher emissions scenario that assumes continued increases in
global emissions (A2).
-- In the event that the Administrator or the National Academy of Sciences has concluded, in the most recent report submitted
under section 705 or 706 respectively, that the United States will not achieve the necessary domestic greenhouse gas emissions reductions, or that
global actions will not maintain safe
global average surface temperature and atmospheric greenhouse gas concentration thresholds, the President shall, not later than July 1, 2015, and every 4 years thereafter, submit to Congress a plan identifying domestic and international actions that will achieve necessary additional greenhouse gas reductions, including any recommendations for legislative action.
«Climate science» as it is used by warmists implies adherence to a set of beliefs: (1) Increasing greenhouse gas concentrations will warm the Earth's
surface and atmosphere; (2) Human production of CO2 is producing significant increases in CO2 concentration; (3) The rate of rise of
temperature in the 20th and 21st centuries is unprecedented compared to the rates of change of
temperature in the previous two millennia and this can only be due to rising greenhouse gas concentrations; (4) The climate of the 19th century was ideal and may be taken as a standard to compare against any current climate; (5)
global climate models, while still not perfect, are good enough to indicate that continued use of fossil fuels at projected rates in the 21st century will cause the CO2 concentration to rise to a high level by 2100 (possibly 700 to 900 ppm); (6) The
global average temperature under this condition will rise more than 3 °C from the late 19th century ideal; (7) The negative impact on humanity of such a rise will be enormous; (8) The only alternative to such a disaster is to immediately and sharply reduce CO2 emissions (reducing emissions in 2050 by 80 % compared to today's rate) and continue further reductions after 2050; (9) Even with such draconian CO2 reductions, the CO2 concentration is likely to reach at least 450 to 500 ppm by 2100 resulting in significant damage to humanity; (10) Such reductions in CO2 emissions are technically feasible and economically affordable while providing adequate energy to a growing world population that is increasingly industrializing.
Last year was the hottest since records began and with an El Nino now
under way the warm
surface waters of the Pacific are releasing heat into the atmosphere with the result 2015 is likely to break last year's record and the
global average surface temperature could jump by as much as 0.1 degree this year alone bring
global surface temperatures increases to 1 degrees or half way to the UN
global limit.
If heat flow into the deeper ocean (
under 300m) is driven independently of
Global Average Surface temperature or the «greenhouse» effect, then we have no reason to suppose that the latter produces any «global warming» a
Global Average Surface temperature or the «greenhouse» effect, then we have no reason to suppose that the latter produces any «
global warming» a
global warming» at all.