Where was man when this warming trend began?

[Gdjjr]

Oldest impact crater on Earth found and it could throw light on ancient climate change

The extreme temperatures and pressures associated with an asteroid strike causes minerals to lose their accumulated lead, resetting the ‘clock’.

So, by knowing the amount of uranium and how long it takes to decay, they calculated that the crater is 2.229 billion years old, plus or minus five million years.

The team realised that the new, more precise date of the impact meant that most of Earth, including Australia, was covered with thick ice sheets at the time.

They also realised the impact came shortly before the global ice age ended, when the Earth began to warm - at 2.225 billion years, plus or minus three million years.


I admit the evidence "could" is ambiguous- however it's not ambiguous to know that man had no effect on the end of the Ice Age or the warming since then.

 

[Fort Fun Indiana]

Oldest impact crater on Earth found and it could throw light on ancient climate change

The extreme temperatures and pressures associated with an asteroid strike causes minerals to lose their accumulated lead, resetting the ‘clock’.

So, by knowing the amount of uranium and how long it takes to decay, they calculated that the crater is 2.229 billion years old, plus or minus five million years.

The team realised that the new, more precise date of the impact meant that most of Earth, including Australia, was covered with thick ice sheets at the time.

They also realised the impact came shortly before the global ice age ended, when the Earth began to warm - at 2.225 billion years, plus or minus three million years.


I admit the evidence "could" is ambiguous- however it's not ambiguous to know that man had no effect on the end of the Ice Age or the warming since then.

What a stupid question. Come on. Do better. If you really can't puzzle this out, you are a fool.

 

[ReinyDays]

Correlation ≠ Causation ... and this is smack in the middle of the Oxygen Crisis ...

Several "snowball Earth" periods are known, they come and go but mostly go ... more of Earth's history is relatively ice-free, meaning no permanent ice except at the highest mountain tops ... and the Earth had been warm since the Cambrian until just a short 30 million years ago ... today we're in a more "slushball Earth" period, the equatorial areas are remaining ice-free during glaciations ...

We have no idea why these fluctuations occur ... just speculation and correlation ... and you're right, without knowing what the natural changes in climate are, we can not assign any causation to man's contribution ... no one knows what the temperature should be right now, not a single person in the entire world ...

... but that doesn't make it a bad idea to conserve energy ... it saves our own money ...

 

[Gdjjr]

... but that doesn't make it a bad idea to conserve energy ... it saves our own money ...

I don't recall anyone saying anything about conserving energy or not conserving energy- being forced to give it to control freaks in the guise of some benevolent scheme saves nothing.

 

[Gdjjr]

What a stupid question. Come on. Do better. If you really can't puzzle this out, you are a fool.

Put the pieces together ans show how smart you are.

 

[ReinyDays]

I don't recall anyone saying anything about conserving energy or not conserving energy- being forced to give it to control freaks in the guise of some benevolent scheme saves nothing.

Jimmy Carter

Carter did not manage to broker an adequate energy policy. He tried to promote conservation by example, turning down the thermostats at the White House and in other government buildings, wearing cardigan sweaters, and installing solar panels and a woodstove at the White House. He also deregulated energy prices, launched a program to develop synthetic fuels, and successfully legislated fuel-efficiency standards. But in an era of soaring oil prices and long lines at the gas pumps, it did not add up to a policy.

In fairness, transforming America's energy consumption would have been a Herculean feat for any president. But Carter lacked two core qualification. He never mastered the art of either inspiring the people or working with Congress. Carter was a man of abiding principle, idealism, and morality. Those qualities shone through in his post-presidency. However, as president, his attempts to appeal to ethical norms often sounded merely reproachful or preachy. His high purpose was not enough.

Source: Obama`s Challenge, by Robert Kuttner, p. 56 , Aug 25, 2008