This is an in-depth article on the cycles of climate change. The intent for this extensive essay is to provide those that are ready with a deeper, science-based analysis on the issue.
Said another way, global warming is one symptom of the much larger problem of human-caused climate change. Global warming is just one symptom of the much larger problem of climate change.
Another distinction between global warming and climate change is that when scientists or public leaders talk about global warming these days, they almost always mean human-caused warming—warming due to the rapid increase in carbon dioxide and other greenhouse gases from people burning coal, oil, and gas.
Climate change, on the other hand, can mean human-caused changes or natural ones, such as ice ages. A climate change unlike any other The planet has experienced climate change before: The planet has experienced long cold periods "ice ages" and warm periods "interglacials" on ,year cycles for at least the last million years.
Increases and decreases in global temperature during the naturally occurring ice ages of the pastyears, ending with the early twentieth century.
Global warming is also different from past warming in its rate. The current increase in global average temperature appears to be occurring much faster than at any point since modern civilization and agriculture developed in the past 11, years or so—and probably faster than any interglacial warm periods over the last million years.
Temperatures over most of the past years compared to the average, based on proxy data tree rings, ice cores, corals and modern thermometer-based data. Over the past two millenia, climate warmed and cooled, but no previous warming episodes appear to have been as large and abrupt as recent global warming.
So why do we have two ways of describing what is basically the same thing? As far back as the late s, scientists were hypothesizing that industrialization, driven by the burning of fossil fuels for energy, had the potential to modify the climate. By the mids, however, more and more evidence suggested warming would dominate and that it would be unlike any previous, naturally triggered warming episode.
Change in temperature degrees per century from Gray areas indicate where there is insufficient data to detect a long-term trend. But over subsequent decades, scientists became more aware that global warming was not the only impact of excess heat absorbed by greenhouse gases. Other changes—sea level rise, intensification of the water cycle, stress on plants and animals—were likely to be far more important to our daily lives and economies.
Science,—Sep 05, · The present global warming cycle lies within the range of these past natural warming cycles, suggesting that the present global warming cycle may be of natural origin and not caused by human activity–as climate skeptics have been arguing for some time.
Objection: Current warming is just part of a natural cycle. Answer: While it is undoubtedly true that there are natural cycles and variations in global climate, those who insist that current.
It's a natural cycle "Global warming (i.e, the warming since ) is over.
The minute increase of anthropogenic CO2 in the atmosphere (%) was not the cause of the warming—it was a continuation of natural cycles that occurred over the past years." of current warming clearly indicates that anthropogenic greenhouse gases are the.
How do we know global warming is not a natural cycle? The bottom line is that nobody has come up with a natural explanation for the current warming episode that fits the observations.
At the. Global Warming -- a gradual increase in planet-wide temperatures -- is now well documented and accepted by scientists as fact.
A panel convened by the U.S National Research Council, the nation's premier science policy body, in June voiced a "high level of confidence" that Earth is the hottest it has been in at least years, and . May 26, · To The Horror Of Global Warming Alarmists, Global Cooling Is Here.
But in the current cycle, sunspot activity has collapsed. NASA’s Science News report for January 8, states.