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Natural Variation
Natural variation includes internal and external variability influences such as the solar Schwabe cycle, oceanic cycles, seasonal influences based on changes caused by the interaction of the various natural oscillations in the climate system. These variations combined influence regional climate and weather on periodic basis as well as influence weather event patterns.
Located in Projects & Resources / Environment / Global Warming
North Atlantic Oscillation (NAO)
The North Atlantic Oscillation (NAO) is a measure of the strength of the westerlies across the North Atlantic. Originally defined by Sir Gilbert Walker in 1932 as the difference in pressure between Ponta Delgada on the Azores and Stykkisholmur in Iceland.
Located in Projects & Resources / Environment / Global Warming
Ocean Cooling
Did the ocean actually start cooling and global warming stop? The data showed that the Atlantic had gone cold. But the scientist that was looking at the data knew that the inertia of the system should not allow such a thing to happen. But there it was... in the data. Knowing the models and the forces involved he did some more investigating and found something... he looked at his wife and said "Oh, no,". What's wrong?" his wife asked? He replied, "I think ocean cooling isn't real."
Located in Projects & Resources / / Global Warming / Myths vs. Facts: Global Warming
Oceanic Systems
Current climate conditions trends and averages: Oceans: Sea Level Rise (SLR), Sea Surface Temperature (SST), Sea Surface Temperature Anomalies (SSTA), Sea Surface Height (SSH), Sea Surface Salinity (SSS). Some animations included.
Located in Projects & Resources / / Global Warming / Current Climate Conditions
Oceanic Thermal Inertia
The primary reasons we are not heating up faster include oceanic thermal inertia and industrial negative aerosol forcing.
Located in Projects & Resources / Environment / Global Warming
Pacific Decadal Oscillation (PDO)
The Pacific Decadal Oscillation is a long-term fluctuation of the Pacific Ocean that waxes and wanes between cool and warm phases approximately every 5 to 20 years. In the cool phase, higher than normal sea-surface heights caused by warm water from a horseshoe pattern that connects the north, west and southern Pacific, with cool water in the middle. During most of the 1980s and 1990s, the Pacific was locked in the oscillation's warm phase, during which these warm and cool regions are reversed. http://www.jpl.nasa.gov/news/news.cfm?release=2008-066
Located in Projects & Resources / Environment / Global Warming
Richard Lindzen
Rebuttal to Richard Lindzen: In general, to support his contentions that global warming is not a serious threat, Lindzen relies on largely unsupported claims pertaining to well reasoned science regarding forcing and feedback's. Some of his contentions have been reasonably contested and in some cases the opposite of his claims have proven true. He tends to say it won't be so bad, but seems to be largely ignoring the economic costs of moving infrastructure and resource scarcity issues.
Located in Projects & Resources / / Global Warming / Myths vs. Facts: Global Warming
Solar Influence
Observations of sunspots began in the time of Galileo, about 400 years ago. Heinrich Schwabe recognized the 11.1 year solar cycle average in 1843. Science is working to improve our understanding of solar activity but beyond 400 years it becomes increasingly speculative.
Located in Projects & Resources / Environment / Global Warming
Southern Oscillation Index (SOI)
The Southern Oscillation Index (SOI) is one measure of the large-scale fluctuations in air pressure occurring between the western and eastern tropical Pacific (i.e., the state of the Southern Oscillation) during El Niño and La Niña episodes. Traditionally, this index has been calculated based on the differences in air pressure anomaly between Tahiti and Darwin, Australia.
Located in Projects & Resources / Environment / Global Warming
Station Drop Out
Many in the denialist camp like to talk about the fact that many temperature reading stations were taken out, and that is why the temperature readings showed global warming. But in reality, this is "Pure disinformation". According to Gavin Schmidt (NASA/GISS) "You can do the same analysis with only stations that remained and it makes no difference."
Located in Projects & Resources / / Global Warming / Myths vs. Facts: Global Warming