Climate Optimism vs. Climate Pessimism

[Leonardo17]

Here Neil DeGrasse Tyson is trying to explain what happens when you keep adding CO2  and CH4 to the atmosphere and the real effects of Climate change.





 
Here is a series I found on youtube. It’s called kurzgesagt (in a nutshell). They cover many scientific issues. But I find their videos on climate change very interesting:






And One of the former US presidential candidate and Vice President Mr Al Gore has a very interesting speech on the issue on this link:

TED

So while the issue is very serious hopelessness is not an option. More than that, it’s not realistic. I think that we are slowly reaching the last line of defense of the fossil-fuel industry. In other words, the energy transition is happening at an accelerating pace. And trying to slow this transition means trillions of dollars for them. So they are putting all their weight on it in a time when China is now announcing a 7 to 10% reduction of their greenhouse gas emissions by 2035.
 
https://www.bbc.com/news/articles/cj4y159190go
 
Their last line of defense is to say “We are already doomed. The planet and humanity is already dead. So let’s keep burning the juice while we are alive”. But I don't agree with that,

Many are stating that there is still a lot space for some reasonable hope on the whole issue. I personally believe in a mixed response to the crisis as a whole. I believe that there will be different parts of the problem that will be solved by different types of solutions and our willingness to implement these solution will mean some tenth of degrees in the change of global temperatures as a whole. (Which will probably be between 2 and 3 degrees by the end of the century).
 
As a spiritual note: I also believe that our way of doing things and our general philosophy on who we are and who we want to be as a specie and as individuals will probably play a huge role as well.

[BrianSoddingBoru4]

on who we are and who we want to be as a specie 

The singular of 'species' is 'species', not 'specie'. Specie means money in the form of coinage, as opposed to paper or digital currency.

Boru

[Rev. Rye]

Whether or not we transition to alternative forms of energy, the evidence tells me that the measures needed to stop it would be absolutely drastic, and even if our leaders gave a shit, it’d be a hard sell.



The odds of us preventing +1.5 Centigrade at this point are zero.

[BrianSoddingBoru4]

Whether or not we transition to alternative forms of energy, the evidence tells me that the measures needed to stop it would be absolutely drastic, and even if our leaders gave a shit, it’d be a hard sell.



The odds of us preventing +1.5 Centigrade at this point are zero.

I’m oddly impressed that Trump would relinquish the title of ‘Greatest Con Job Ever Perpetrated On The World.”

Boru

[zebo-the-fat]

Maybe using all the hot air produced by politicians would count as green energy!

[Alan V]

Whether or not we transition to alternative forms of energy, the evidence tells me that the measures needed to stop it would be absolutely drastic, and even if our leaders gave a shit, it’d be a hard sell.

The odds of us preventing +1.5 Centigrade at this point are zero.

Yes, we will not prevent +1.5 C of warming at this point. There is a lot of inertia in the system.

However, the world will transition to alternative forms of energy because of economics. Fossil fuels will get more and more expensive to extract until they are no longer economical. Meanwhile wind and solar will get cheaper, and new varieties of alternative energies will be developed.

The problem is the timing. We still have enough fossil fuels to burn to drive us over the edge in terms of climate change. The reason why not going too much higher than 2 C is so important is that natural positive feedbacks of various sorts will kick in over time, taking the control of climate change out of human hands. Think of more forest fires emitting CO2, more droughts killing trees and plants, the dying off of the Amazon rainforest, the ice sheets melting so they no longer reflect so much sunlight, the oceans absorbing less heat as they warm and perhaps emitting heat, the permafrost melting and emitting CO2 and CH4, and so on. We will have to actively pull CO2 from the atmosphere and bury it safely underground again to stand a chance against climate change, and that's still an unproven technology at scale.

At a point people may be so busy moving away from the big cities on the coastlines that humanity will likely be overwhelmed. I think this is a realistic assessment of our chances, unless as you say we adopt drastic measures, and within the next two decades at that.

Hopeful thinking aside, physics is physics.

[Alan V]

The one hope I see for the U.S. is if a Democrat is elected president in 2028, and he uses the powers of his office, which were expanded by Trump and the Supreme Court, to implement the drastic measures truly required to combat climate change.

[BrianSoddingBoru4]

The one hope I see for the U.S. is if a Democrat is elected president in 2028, and he uses the powers of his office, which were expanded by Trump and the Supreme Court, to implement the drastic measures truly required to combat climate change.

Ending fossil fuel subsidies by executive fiat would be a good start. The price increase at the pump and higher electricity rates would have voters screaming for renewables.

Boru