Pepe's Climate Thread

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What are we essential to? Most don't even think life has meaning, so I don't understand what the universe would lose if we weren't here anymore.

But the science has been clear for decades and they're stealing my future something something how dare you!

I gather you are Greta's twin brother?

Child, you are only 16, and though you are very intelligent, you don't have life's wisdom that can only be attained through years of experience.

For example: There are a lot of sociopaths, psychopaths and garden variety ratbags who will use your naivety to their advantage to advance their power lust.
This is something you are yet to learn, sweet young Wolfram. <comfort>

Sometimes they'll even use ad hominem attacks to try to make a person more malleable to their guile.

Of course, neither naivete, authority, nor consensus have any bearing on truth in either direction, only the merit of the involved concepts themselves as they relate to reality.

Interesting that there is no provided link to look up the professionals and scientists involved in this letter.

Climate change proponents: If we win, and we're wrong, we get a healthier, cleaner planet!

Climate change deniers: If we win, and we're wrong, we all die!

There is one undeniable fact. The climate is changing whether it is solar forcing, or human intervention, or larger changes solar system wide, or any other issue, the climate is changing and not for the better. Unless you have been living under a rock in recent years and not witnessed the intensification of storms across the globe among other things, you would know this. We can continue to go on with our heads in the sand to see a world without clean air, clean water, clean food, significant wild life reductions leaving a waste land to the following generations. That is our future if things go as they are today.

I suppose all I did here was provide food for the trolls and contrarians.

So, how often do ice ages happen, and when is the next freeze expected to begin?

The answer to the first question depends on whether you're talking about big ice ages or the little ice ages that happen within those larger periods. Earth has undergone five big ice ages, some of which lasted for hundreds of millions of years. In fact, Earth is in a big ice age now, which explains why the planet has polar ice caps. [Photo Gallery: Antarctica's Pine Island Glacier Cracks]

Big ice ages account for about 25 percent of Earth's past billion years, said Michael Sandstrom, a doctoral student in paleoclimate at Columbia University in New York City.

The five major ice ages in the paleo record include the Huronian glaciation (2.4 billion to 2.1 billion years ago), the Cryogenian glaciation (720 million to 635 million years ago), the Andean-Saharan glaciation (450 million to 420 million years ago), the Late Paleozoic ice age (335 million to 260 million years ago) and the Quaternary glaciation (2.7 million years ago to present).

These large ice ages can have smaller ice ages (called glacials) and warmer periods (called interglacials) within them. During the beginning of the Quaternary glaciation, from about 2.7 million to 1 million years ago, these cold glacial periods occurred every 41,000 years. However, during the last 800,000 years, huge glacial sheets have appeared less frequently — about every 100,000 years, Sandstrom said.

This is how the 100,000-year cycle works: Ice sheets grow for about 90,000 years and then take about 10,000 years to collapse during warmer periods. Then, the process repeats itself.

Given that the last ice age ended about 11,700 years ago, isn't it time for Earth to get icy again?

"We should be heading into another ice age right now," Sandstrom told Live Science. But two factors related to Earth's orbit that influence the formation of glacials and interglacials are off. "That, coupled with the fact that we pump so much carbon dioxide into the atmosphere [means] we're probably not going to enter a glacial for at least 100,000 years," he said. https://www.livescience.com/58407-how-o ... appen.html

Climate change proponents: If we win, and we're wrong, we get a healthier, cleaner planet!

Climate change deniers: If we win, and we're wrong, we all die!