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Even if Climate Change was not real...
#5
RE: Even if Climate Change was not real...
The science of climate change has been established beyond a reasonable doubt.

The troposphere has warmed at a significant rate, while we observe the stratosphere is experiencing a cooling at the same time. Both are at the rate that are indicative of a greenhouse effect. If climate change was due to something other than greenhouse gases - say something along the lines of a solar cycle or cosmic rays - then we would see a warming trend through the Earths atmosphere, and that's just not what we see. Instead we see warming trends and a clear established link between greenhouse gases and temperature in the Earths history in paeloclimate data.


http://www.climatecentral.org/news/new-e...ming-15316
[Image: msu_1978-2010.png]
https://earthobservatory.nasa.gov/Featur.../page4.php

A snippet from a NASA article concerning this issue entitle "Is Current Warming Natural?" that is very helpful.


Quote:Although volcanoes are active around the world, and continue to emit carbon dioxide as they did in the past, the amount of carbon dioxide they release is extremely small compared to human emissions. On average, volcanoes emit between 130 and 230 million tonnes of carbon dioxide per year. By burning fossil fuels, people release in excess of 100 times more, about 26 billion tonnes of carbon dioxide, into the atmosphere every year (as of 2005). As a result, human activity overshadows any contribution volcanoes may have made to recent global warming.

Changes in the brightness of the Sun can influence the climate from decade to decade, but an increase in solar output falls short as an explanation for recent warming. NASA satellites have been measuring the Sun’s output since 1978. The total energy the Sun radiates varies over an 11-year cycle. During solar maxima, solar energy is approximately 0.1 percent higher on average than it is during solar minima.

Each cycle exhibits subtle differences in intensity and duration. As of early 2010, the solar brightness since 2005 has been slightly lower, not higher, than it was during the previous 11-year minimum in solar activity, which occurred in the late 1990s. This implies that the Sun’s impact between 2005 and 2010 might have been to slightly decrease the warming that greenhouse emissions alone would have caused.

Scientists theorize that there may be a multi-decadal trend in solar output, though if one exists, it has not been observed as yet. Even if the Sun were getting brighter, however, the pattern of warming observed on Earth since 1950 does not match the type of warming the Sun alone would cause. When the Sun’s energy is at its peak (solar maxima), temperatures in both the lower atmosphere (troposphere) and the upper atmosphere (stratosphere) become warmer. Instead, observations show the pattern expected from greenhouse gas effects: Earth’s surface and troposphere have warmed, but the stratosphere has cooled.




[Image: 12-3-12-Mike-TropoStratosphereTempTrends...c1_c_c.jpg]


Sorry people, we burned the gases, we put in them in the atmosphere, and it's our mess to clean-up. While climate scientists might disagree on certain prediction of climate change, they do not disagree that it IS happening, that we did it, and that there will be negative consequences.
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Messages In This Thread
Even if Climate Change was not real... - by NuclearEnergy - April 18, 2017 at 3:55 pm
RE: Even if Climate Change was not real... - by Crunchy - April 18, 2017 at 4:08 pm
RE: Even if Climate Change was not real... - by Sal - April 18, 2017 at 4:12 pm
RE: Even if Climate Change was not real... - by Jackalope - April 18, 2017 at 4:52 pm
RE: Even if Climate Change was not real... - by DarkerEnergy - April 18, 2017 at 10:26 pm
RE: Even if Climate Change was not real... - by Brian37 - April 19, 2017 at 7:59 am

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