Energy, the environment & climate change.

[west didsblue]

It's 5 billion until it becomes a red giant mate. I don't know where you got your 1.5bn from.

Thank fuck for that. I was starting to get worried.

 

[Chippy_boy]

Thank fuck for that. I was starting to get worried.

At least we will probably have won more PL titles than the rags by then. Maybe the pundits will like us?

Perhaps not.

 

[west didsblue]

Shale gas though, which comes with its own environmental issues.

More water table related than greenhouse gases though. Particularly when regulations aren't particularly tight like in the US. Apparently shale gas burns much more cleanly with less emissions than gas extracted in the traditional way.

 

[aguero93:20]

Silly argument but you say it's 1.5 billion until it becomes a red giant mate. I don't know where you got your 1.5bn from, it's 5 billion.

The earth may be uninhabitable before that but the sun will "only" be 10% brighter in about 1.5 billion years.

This is quite good to read if you have the patience https://ui.adsabs.harvard.edu/abs/2009EPJWC...1..267L/abstract
10% brighter means no oceans mate. No precipitation, no movement of mineralisation, very few crops. And the low estimates for that happening are 150m years, I picked 1.5bn because it was the high estimate and I didn't want to sensationalise it.
Our future isn't on this planet, but it would be sensible to mind it for the meantime.

 

[Chippy_boy]

This is quite good to read if you have the patience https://ui.adsabs.harvard.edu/abs/2009EPJWC...1..267L/abstract
10% brighter means no oceans mate. No precipitation, no movement of mineralisation, very few crops. And the low estimates for that happening are 150m years, I picked 1.5bn because it was the high estimate and I didn't want to sensationalise it.
Our future isn't on this planet, but it would be sensible to mind it for the meantime.

Why did you not just say "My mistake, it's not going red giant in 1.5bn years?"

Silly argument but it's irritating when people cannot just say "sorry, got that wrong" and instead we have to go around and around talking bollocks.

 

[aguero93:20]

Why did you not just say "My mistake, it's not going red giant in 1.5bn years?"

Silly argument but it just pisses me off when people cannot just say "sorry, got that wrong".

It's going red giant in 1.5bn years mate, the process takes a long time, but we leave the goldilocks zone very early on in it. It runs out of fuel in 5bn years. However that's immaterial as we'll be long out of this solar system or extinct by then.

 

[Chippy_boy]

It's going red giant in 1.5bn years mate, the process takes a long time, but we leave the goldilocks zone very early on in it. It runs out of fuel in 5bn years. However that's immaterial as we'll be long out of this solar system or extinct by then.

Sorry but you are mistaken. It will BEGIN the helium burning phase, turning into a red giant in 5+ billion years.

 

[aguero93:20]

Sorry but you are mistaken. It will BEGIN the helium burning phase, turning into a red giant in 5+ billion years.

I must meet these scientists you're reading, any chance of a source?

 

[Trevor Morley's Tache]

More water table related than greenhouse gases though. Particularly when regulations aren't particularly tight like in the US. Apparently shale gas burns much more cleanly with less emissions than gas extracted in the traditional way.

That's what I meant. The previous administration did away with the regulations which meant that the energy companies are free to maximise their profits without consideration for the environmental impacts on the local population (poisoning the water, plus air pollution which effects workers and the local population).

It will be Flint MI or PG&E Hinkley CA all over again; probably worse. All for a few extra dollars.

 

[Chippy_boy]

I must meet these scientists you're reading, any chance of a source?

Really???

Google "Sun Red Giant" and on page 1, every single link confirms it.

Link 1, space.com: "In approximately 5 billion years, the sun will begin the helium-burning process, turning into a red giant star."

Link2: Phys.org, "the sun has been in what is known as its main sequence, where nuclear fusion in its core causes it to emit energy and light, keeping us here on Earth nourished. This will last for another 4.5 – 5.5 billion years"

Link3: WIkipedia; "The Sun will exit the main sequence in approximately 5 billion years and start to turn into a red giant.[27][28] "

Link4: Astronomy.com: "Roughly 5 billion years from now, the Sun will exhaust the hydrogen fuel in its core and start burning helium, forcing its transition into a red giant star."

Link5: Theconversation.com: "The sun won’t die for 5 billion years ... In a few billion years, the sun will become a red giant so large that it will engulf our planet."

Link6: Futurism.com: "When the Sun becomes a fully-fledged, full grown red giant (in some 7.59 billion years"

Link7: *Universetoday: "the Sun has been in what is known as its Main Sequence, where nuclear fusion in its core causes it to emit energy and light, keeping us here on Earth nourished. This will last for another 4.5 – 5.5 billion years"

Link8: Schoolsobservatory: "In the Sun's case, this will mean the fiery end of all the inner planets of our Solar System, which might also include the Earth; but don't worry, this won't happen for another 5,000,000,000 years."

Link9: Discovermagazine: "In roughly 5 billion years, the sun will run out of energy and drastically alter the solar system"

That is everything on page 1. Need I go to page 2?

Seriously mate, I only linked all of these because I had a bored spare moment, but honestly it is the accepted fact. The sun does not begin transitioning into a red giant until the hydrogen runs out and then it starts to fuse helium, and that *starts* in about 5 billion years time, not 1.5 billion. It's really not up for debate.