NASA's Maven spacecraft detects dramatic changes in Mars atmosphere

[bobc4012]

Really? U sure? In Pa, they laid down the Pa Turnpike starting in 1940. After it was done, there was a dramatic drop in lake effect snow from the great lakes, south of the highway.
The turnpike created a huge crosswind that lowered lake effect snowfall south of it as much as 40% at times. Permanently. They didn't even know they were doing it.

Can you show a link from a credible source that proves that claim? The link you provided only covers cloud seeding in Texas, which does make the point about humans changing the weather. Realize Lake Erie and Lake Ontario both head to the North-East which increases in distance over most of the PA Turnpike. In addition, you have the mountain range between the lakes and the turnpike. You also have I90 and I80 stretching south of the lakes. The lakes, themselves, do have an effect on the climate of the nearby terrain, but peters out the further south you get from the lakes. When I90 was constructed through Western NY, North-West PA and Eastern Ohio, people claimed it made a greater snowfall on the south side of the highway, but, in actuality, there was no difference as the warmth of the lake, in early winter, reduces the amount of snow right along the lake for a short distance and can drop quite a bit of snow a mile or two south of the lake, this has occurred for years. A lot of those claims were due to faulty memories.

Note, I am not disputing climate change, which is a natural phenomenon regardless of what life may or may not add to it. It was just about 12,000 years ago that ice/snow covered a significant portion of the Northern Hemisphere and created the Great Lakes when it melted. And prior to that period of ice, there was a different climate in the Northern Hemisphere. A study done using Hawaii's Mauna Kea indicated 3 glacial periods from 150,000-200,000 years ago. See: https://en.wikipedia.org/wiki/Last_Glacial_Maximum. Also worth reading through its entirety is: https://nsidc.org/learn/parts-cryosphere/ice-sheets/ice-sheet-quick-facts.

 

[anastrophe]

A Graphical History of Atmospheric CO2 Levels Over Time | Earth.Org

As the most abundant greenhouse gas in our atmosphere, CO2 levels have varied widely over the course of the Earth’s 4.54 billion year history.

earth.org

One more try.

I'm afraid its you who has the difficulty with reading skills. Try reading what I wrote again, rather than ignoring my words, which were precise and clear. You've offered no refutation, only indistinct 'already answered' non-answers, non-rebuttals, non-refutations. And now memes.
Non-responsive in the extreme.

 

[scavengerspc]

Can you show a link from a credible source that proves that claim? The link you provided only covers cloud seeding in Texas, which does make the point about humans changing the weather.

Actually, I first heard about in High School. I am from Pittsburgh and it was discussed in a science class.
But just a few years ago I saw it mentioned again on YouTube in a video about Earths climate from the Weather Channel.
Hang in.

I'm afraid its you who has the difficulty with reading skills. Try reading what I wrote again, rather than ignoring my words, which were precise and clear. You've offered no refutation, only indistinct 'already answered' non-answers, non-rebuttals, non-refutations. And now memes.
Non-responsive in the extreme.

Well if you read my links you will find the answer. They have answers on reliability of the ice core method. But I can post another if you need it. I will find one in crayon!
People can give you the book, but can't make you study.

EDIT - Ok, on reflection, you are boring me. I was going to let this drag on, but I will make it easier for you.

Reliability of ice-core science: historical insights | Journal of Glaciology | Cambridge Core

Reliability of ice-core science: historical insights - Volume 56 Issue 200

www.cambridge.org

"Ice cores are remarkably faithful recorders of past climate, providing multiply duplicated reconstructions with small and quantifiable uncertainties. Ice core reconstructions in general do not rely on assumed quantitative time-invariance of empirical calibrations between climate and sedimentary characteristics, but instead rely on assuming little more than the constancy of physical law over time."

And please don't come back to b***h until you have read it with its source material.
It's MUCH more than just the one paper.

 

[wiyosaya]

Wow. Leave to go on retreat for two weeks, and the climate change deniers come back out of the wood work. Just Wow - reading the climate change deniers posts in this thread.

Climate change happens everywhere, throughout billions of years, who would've thought? With or without human.

And here we are arrogantly thinking that we are "that great " to be able to forcefully change our planet cycle.

I suppose your next post will be something like "I don't believe in climate change because God said that he will not smite the Earth again." That would not be original, though, because Mitch McConnell already said that in a fit of insanity, IMO, on the Senate Floor.

So man is too small to affect the Earth or its environment? Perhaps you ought to look at these. Start here -
https://www.grc.nasa.gov/WWW/BGH/atmosmet.html

Then follow that with this - https://www.museumoflondon.org.uk/discover/londons-past-air
making sure to pay close attention to this paragraph -

Even before factories and cars began to pump pollutants into the city's atmosphere, Londoners have been no strangers to noxious air. 17th century writers complained of the foul smoke emitted by burning sea coal, and backed-up chimneys suffocated people in their beds every year for centuries. But there were two times in London's history when the air became not just foul-smelling but actually deadly: the Great Stink and the Great Smog.

And this as the state of America before the Clean Air Act (I lived through this, did you?) - https://www.popsci.com/america-before-epa-photos/

And how about this for the current times in Coal Burning China - https://www.reuters.com/world/china...-pollution-alert-visibility-drops-2023-10-31/

Please show us one iota of data or scientific evidence, any of you climate change deniers, that humanity was not responsible for any of this.

All any of you climate change deniers, IMO, have done is show us that you are no better than AI in getting things wrong.

But what any of this has to do with the topic of the article, I have no idea.

 

[wiyosaya]

it shines a light of your lack of understanding how data is collected not was collected, because they use tree rings. A tree that is 4000yrs old on the earth now is about as wide as a house if it was still alive, so that proves how stupid climate change pushes are, tree's collect carbons which is what forms the rings over a season which is roughly 1 yr, just some basic science so lets take a tree that 4000 years old, talking about bigish trees, 4000 rings avg around 2cm = ...you don't want to know how much bs the scientist talk

the diameter of a circle that grows by 2cm, 4000 times. If that’s correct, then the diameter of the circle after 4000 growth cycles would be approximately 1,073,741,824 cm or 10,737,418.24 meters.
Just work that out in your science....
Most science is thumb suck, but that is ok not long and all will be revealed....

Tree rings are carbon. Its only good for about 5,000 years. (You highlighted some big numbers. Are we supposed to be impressed because you highlighted them?)

Here's a few links for your edification -

Paleoclimatology - Wikipedia

en.wikipedia.org

Global temperature record - Wikipedia

en.wikipedia.org

 

[wiyosaya]

That is some of the most dreamed up numbers I have heard in years.
Not to mention, tree rings are NOT widely relied on to read past carbon dioxide levels.
And how would that even work? The oldest trees in the world are approximately 5000 years old.

Those facts are gathered with core samples. In those frozen samples are air bubbles that, obviously, still has air in them from anytime in the past they want to look. They just get the samples from a greater depth. Its called basic knowledge.

"Basic knowledge" has escaped from many of the posters to this thread.