Global warming - an urgent problem requiring radical solution (no politics or religion)
Sort:
Aug 23, 2018
0
#7582
Millions upon millions of earths could fit inside the sun yet it’s human activity that’s behind climate change? Funny... that’s the same thing I would say if I was trying to convince the world to buy into a multi trillion dollar carbon tax. global warming- it’s the sun dummies!
Aug 23, 2018
0
#7584
To be fair our activity probably does in one way or another contribute to global warming/climate change/whatever they call it now. Certainly in terms of pollution. All of that plastic etc didn’t end up in our oceans on its own
Aug 23, 2018
0
#7585
You can’t really discount the suns role or volcanic activity. It’s a major factor. So say people smarter than i
Aug 23, 2018
0
#7586
WilliamAC1230 wrote:
Millions upon millions of earths could fit inside the sun yet it’s human activity that’s behind climate change?
You don't have the slightest inkling of how much that exposes your total lack of understanding.
Aug 23, 2018
0
#7587
WilliamAC1230 wrote:
Also volcanic activity
Which contributes about 1% as CO2 to the atmosphere as human activity. Fact (not the sort of drivel you read).
Aug 23, 2018
0
#7588
WilliamAC1230 wrote:
You can’t really discount the suns role or volcanic activity. It’s a major factor. So say people smarter than i
Actually you can't discount them, because you don't understand enough. Those who do understand enough (and the rest of us who read real facts on the subject) know that the Sun's output varies very little over many years, which means it doesn't CHANGE temperatures much overs such periods. and volcanoes simply don't produce much CO2.
It is virtually impossible to find a genuine expert who does not accept such well-established facts and anyone who doesn't do so is unlikely to be smart enough to be described as such.
There is no question that humans are driving global warming with CO2. This is settled science.
Aug 23, 2018
0
#7590
s23bog wrote:
Warmth can be found beyond the sun's rays. Likewise, rocks can escape the gravity well of the closest star to us. The sun does not need to be the source of all energy sources worth considering. If that were so, we would never travel beyond this solar system. I just don't see a need to focus on the sun for power. I know that I do not want to depend upon the sun for power.
You do understand that reality matters as well as gut feelings?
Aug 23, 2018
0
#7591
There is surely plenty of room for power from other sources, but the Sun is just by far the largest source of energy within a few light years of here. And only has competition from other stars. Everywhere on Earth has access to it, and access from space is 24/7 with an unobstructed view and is scalable.
Probably the only weak point of the Sun is only providing about 1 kW per square meter. But obviously this can be scaled.
There are plenty of higher concentration sources of energy. Fusion, fission, then chemical reactions, fuel cells, batteries. Geothermal, tidal power are genuine non-solar sources, but quite small.
Aug 24, 2018
0
#7592
With all due respect, I don't just "think" it. I know it from the facts. While solar renewables can provide all human energy needs, geothermal can't. See Earth's internal heat budget
The total amount of geothermal energy that the entire Earth emits across its entire surface amounts to an average of 0.09 W per square meter. This is more than a thousand times less than solar irradiance alone. In almost all locations this power is way too weak to be of any use: in volcanic regions where heat is accessible and rapidly replenished (eg Iceland) it can be very useful. In order to cover even current human energy needs, we would need a large fraction of all of the geothermal energy produced by the Earth. The energy cost of digging deep holes to get at hot rocks is too high to justify the small amount of power available in almost all locations.
By contrast, we need less than 0.1% of the solar energy, and most locations make either solar or wind power or both potentially economic these days.
Aug 24, 2018
0
#7593
Rarely could a comment be less appropriate.
You post guesses and gut feelings, then I look up and/or calculate the facts and post them. Then you ignore the facts and project your failings on me!
When was the last time you posted a quantitative fact or a link to a reliable source of them? I have encouraged you to research your ideas, but it seems like you are too lazy.
hello
Another great Russian car ?
Eccentrism (eccentricity) is a fact on this forum. Or to put more bluntly - s23bog - why don't you stop talking in riddles and actually explain your ideas, That's assuming you have something of value or interesting to say in the first place - which I doubt.