Sentences with phrase «natural global warming»

For this reason, it should not be too surprising if the world goes through periods of natural global warming or global cooling.

The current IPCC climate models only include one possible mechanism for natural global warming — changes in solar variability.

People are debating this because there is a supposed natural global warming and a supposed man - made global warming.

So, it seems that the ability of the climate models to simulate natural global warming is very limited.

In other words, many of the models include no mechanism for natural global warming.

While natural global warming during the ice ages was initiated by increased solar radiation caused by cyclic changes to Earth's orbital parameters, there is no evident mechanism for correcting Anthropogenic Global Warming over the next several centuries.

If natural global warming caused a warm Medieval Warm Period, then perhaps much (or all) of the recent global warming was also a natural phenomenon, i.e., not man - made global warming!

Despite all the hand - wringing, hot rhetoric, and impending doom talk, natural global warming looks to be in a dying phase regardless of the amount of human CO2 emissions.

This is not too surprising because (a) CO2 concentrations didn't actually increase much until about the 1950s, and (b) the current climate models don't include many mechanisms to account for natural global warming.

This, coupled with a period of natural global warming that created a shortage of traditional foods, hungry humans asked, «Can we eat that, too?»

Which leads to another observation about natural global warming and climate change: past empirical evidence from earlier in the 20th century confirms that Earth's natural climate oscillations can produce periods of significant temperature change increases that even exceed the most recent temperature climate change.

A natural global warming event that took place 56 million years ago was triggered almost entirely by volcanic eruptions that occurred as Greenland separated from Europe during the opening of the North Atlantic Ocean, according to an international team of researchers that includes Andy Ridgwell, a University of California, Riverside professor of earth sciences.

The spacecraft also may see clouds and fog: Plutonian meteorology, driven by the planet's all - natural global warming and cooling.

However, Petrenko found that the gradual, natural global warming and rapid regional warming that characterized the deglaciation 12,000 years ago — events that were in some aspects comparable to the current human - driven global warming — did not trigger detectable releases of methane from these reservoirs.

It seems that the Earth's climate varies between periods of natural global warming and natural global cooling, regardless of what us humans are doing...

So, if man - made global warming were occurring, it should not be confused with the natural global warming since the Little Ice Age.

Since this doesn't seem to have occurred (despite some claims to the contrary — see Section 5), it suggests that the apparent sea level rise is a naturally - occurring phenomenon (perhaps due to natural global warming).

Some scientists argue that there has been a natural global warming trend.

They assumed that man - made global warming was real, but recognised that natural global warming could also occur.

It could just as easily have been «natural global warming».

For instance, maybe it was man - made global warming, or maybe it was natural global warming.

Fossil evidence shows that during past periods of natural global warming, many animals, from horses to gophers to diatoms, shrunk.

Natural Global Warming.