Here is also a large part of the greenhouse.. again science does not know if adding more warms or cools... http://climatekids.nasa.gov/nasa-research/ Aerosols are tiny particles or droplets of liquid floating in the air. Earth has lots of them. Some are natural. They might come from volcanoes, forest fires, vegetation, or sea spray. However, about 10% of the aerosols in our atmosphere come from human activityâfor example, when we burn gas in our cars and coal in our power plants. Scientists do not understand how aerosols affect regional and global climate. They are not even sure whether aerosols are warming or cooling our planet. Instruments on these satellites are collecting information on aerosols:
Here is the sun... guess what NASA needs to study the sun as well. http://climatekids.nasa.gov/nasa-research/ Do the Sun's natural cycles affect our climate? Cartoon of Sun with sunspots. We know that our Sun has an 11-year cycle. It is quiet for a while, then it gradually gets more active, up to its "solar maximum." Then it settles down again. Even so, its energy output varies only a tiny fraction (8/10,000ths or .08%) from lowest to highest output. We also think the Sun's energy output may vary over longer periods too. Scientists aren't sure about any longer-term cycles, though. That's because they have been closely monitoring the Sun for only about 40 years. Two NASA Earth satellites that are studying the Sun are:
AMERICAN SCIENTIFIC SOCIETIES Statement on climate change from 18 scientific associations "Observations throughout the world make it clear that climate change is occurring, and rigorous scientific research demonstrates that the greenhouse gases emitted by human activities are the primary driver." (2009)2 AAAS emblem American Association for the Advancement of Science "The scientific evidence is clear: global climate change caused by human activities is occurring now, and it is a growing threat to society." (2006)3 ACS emblem American Chemical Society "Comprehensive scientific assessments of our current and potential future climates clearly indicate that climate change is real, largely attributable to emissions from human activities, and potentially a very serious problem." (2004)4 AGU emblem American Geophysical Union "The Earth's climate is now clearly out of balance and is warming. Many components of the climate system â including the temperatures of the atmosphere, land and ocean, the extent of sea ice and mountain glaciers, the sea level, the distribution of precipitation, and the length of seasons â are now changing at rates and in patterns that are not natural and are best explained by the increased atmospheric abundances of greenhouse gases and aerosols generated by human activity during the 20th century." (Adopted 2003, revised and reaffirmed 2007)5 AMA emblem American Medical Association "Our AMA ... supports the findings of the Intergovernmental Panel on Climate Changeâs fourth assessment report and concurs with the scientific consensus that the Earth is undergoing adverse global climate change and that anthropogenic contributions are significant." (2013)6 AMS emblem American Meteorological Society "It is clear from extensive scientific evidence that the dominant cause of the rapid change in climate of the past half century is human-induced increases in the amount of atmospheric greenhouse gases, including carbon dioxide (CO2), chlorofluorocarbons, methane, and nitrous oxide." (2012)7 APS emblem American Physical Society "The evidence is incontrovertible: Global warming is occurring. If no mitigating actions are taken, significant disruptions in the Earthâs physical and ecological systems, social systems, security and human health are likely to occur. We must reduce emissions of greenhouse gases beginning now." (2007)8 GSA emblem The Geological Society of America "The Geological Society of America (GSA) concurs with assessments by the National Academies of Science (2005), the National Research Council (2006), and the Intergovernmental Panel on Climate Change (IPCC, 2007) that global climate has warmed and that human activities (mainly greenhouse‐gas emissions) account for most of the warming since the middle 1900s." (2006; revised 2010)9 SCIENCE ACADEMIES International academies: Joint statement "Climate change is real. There will always be uncertainty in understanding a system as complex as the worldâs climate. However there is now strong evidence that significant global warming is occurring. The evidence comes from direct measurements of rising surface air temperatures and subsurface ocean temperatures and from phenomena such as increases in average global sea levels, retreating glaciers, and changes to many physical and biological systems. It is likely that most of the warming in recent decades can be attributed to human activities (IPCC 2001)." (2005, 11 international science academies)10 USNAS emblem U.S. National Academy of Sciences "The scientific understanding of climate change is now sufficiently clear to justify taking steps to reduce the amount of greenhouse gases in the atmosphere." (2005)11 U.S. GOVERNMENT AGENCIES USGCRP emblem U.S. Global Change Research Program "The global warming of the past 50 years is due primarily to human-induced increases in heat-trapping gases. Human 'fingerprints' also have been identified in many other aspects of the climate system, including changes in ocean heat content, precipitation, atmospheric moisture, and Arctic sea ice." (2009, 13 U.S. government departments and agencies)12 INTERGOVERNMENTAL BODIES IPCC emblem Intergovernmental Panel on Climate Change âWarming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level.â13 âMost of the observed increase in global average temperatures since the mid-20th century is very likely* due to the observed increase in anthropogenic greenhouse gas concentrations.â14 *IPCC defines âvery likelyâ as greater than 90 percent probability of occurrence. OTHER RESOURCES List of worldwide scientific organizations The following page lists the nearly 200 worldwide scientific organizations that hold the position that climate change has been caused by human action. http://opr.ca.gov/s_listoforganizations.php
In summary... when science speak the truth about greenhouse gases... there answer is that they do not know if adding more will warm or cool. Science understands CO2 is a thermostat. So by definition it can warm or cool. We realize that the earth is a very complex and dynamic system. Only lying govt workers and idiot leftist drones pretend they know what the next particle or next years worth of co2 particles will do. We simply do not know. here is science showing co2 cools... http://science.nasa.gov/science-news/science-at-nasa/2012/22mar_saber/ âCarbon dioxide and nitric oxide are natural thermostats,â explains James Russell of Hampton University, SABERâs principal investigator. âWhen the upper atmosphere (or âthermosphereâ) heats up, these molecules try as hard as they can to shed that heat back into space.â Thatâs what happened on March 8th when a coronal mass ejection (CME) propelled in our direction by an X5-class solar flare hit Earthâs magnetic field. (On the âRichter Scale of Solar Flares,â X-class flares are the most powerful kind.) Energetic particles rained down on the upper atmosphere, depositing their energy where they hit. The action produced spectacular auroras around the poles and significant1 upper atmospheric heating all around the globe. âThe thermosphere lit up like a Christmas tree,â says Russell. âIt began to glow intensely at infrared wavelengths as the thermostat effect kicked in.â For the three day period, March 8th through 10th, the thermosphere absorbed 26 billion kWh of energy. Infrared radiation from CO2 and NO, the two most efficient coolants in the thermosphere, re-radiated 95% of that total back into space.