# Tag Info

• 2,933
Accepted

### How is it possible that it can get hotter in the car than it is outside?

Law of Thermodynamics says that two bodies eventually will have equal temperatures. That is not an absolute Law. There are conditions, and one of those conditions involves the energy input to the ...
• 14.9k

### Explain it to me like I'm a physics grad: Greenhouse Effect

Explain it to me like I'm a physics grad: Global Warming Physics grads know all about spherical cows. So I'll start with a spherical cow model, and then move beyond that. Spherical cow model of the ...
• 39.6k

### To what extent do (man made) generators of heat from internal sources in earth's system cause climate change?

The power involved does not represent a significant fraction of the total energy budget, so it can normally be ignored. Assuming (per Wikipedia Solar Energy) that the energy received on earth from ...
• 34.5k
Accepted

### Why is climate change triggering faster rotation?

Glaciers are water that is frozen and high up in the mountains. If you thaw that ice and the water flows back to sea-level, then it would seem that mass in the water would get closer to the rotation ...
• 113k

It seems like this is really your main question: Why does adding more $\mathrm{CO_2}$ to the atmosphere increase the greenhouse effect if the atmosphere is already opaque in the absorption bands of $\... • 6,001 26 votes ### Can we cool Earth by shooting powerful lasers into space? Ambient heat is low grade energy. You can't effectively harness it to do work (which is a transfer of energy. i.e. powering laser which itself is a machine to transfer energy) because it has nowhere ... • 7,720 23 votes Accepted ### Why did nuclear testing not result in nuclear winter? A nuclear winter would be a result of large amounts of smoke blocking light from the Sun. The smoke would be from the fires started by nuclear bombs on cities, not directly from the bombs. Most bomb ... • 334k 23 votes ### Bush fires and heat waves, the real mechanics? Water evaporates faster at higher temperatures, so plants will lose water faster in a heat wave than in milder conditions. Drier plants will catch fire easier and burn faster and hotter than moist ... • 8,339 22 votes Accepted ### Why don't solar panels contribute to global warming? Simple back-of-the-envelope calculation: This figure shows our best estimates of the radiative forcing from different anthropogenic (human-caused) phenomena: It shows that the radiative forcing from ... • 6,001 20 votes Accepted ### Is nuclear power desireable in the long term, given the fact that it's an unnatural heat input to our planet? There is a balance between heat input and radiation lost to space. To maintain this balance, if you increase the input by 0.1%, you must do the same to the output. Approximating the earth as a ... • 9,211 18 votes ### How much do sea levels rise due to thermal expansion? This is known as the steric component of sea level rise, and it is significant. As a very rough indication of the size of the effect, if the top 1000 meters of the ocean warmed from 10 to 11 degrees ... • 9,211 18 votes ### Can anyone explain the REAL reason why CO$_2\$ increases global temperatures (not the simplistic greenhouse analogy provided for public consumption)?

So the infrared absorption process is already fully saturated, and thus further increases in atmospheric CO2 will not lead to any additional absorption. There is no such thing as a fully ...
• 1,075

### Can we cool Earth by shooting powerful lasers into space?

Your proposal is to increase the effective albedo of the Earth, and in principle it could work. No need for the giant lasers though—probably more efficient and much cheaper just to use mirrors.
• 9,211
Accepted

### Damhsa Theory: Can gravitational waves really affect the long term climatic evolution of Earth?

"The Damhsa Theory proposes that these oscillations are actually gravitational waves from the continued ramifications of the expanding universe and that ice ages and inter-glacials such as our current ...
• 30.5k

### Does the sea level increase if an iceberg melts?

It is true that when pure ice melts in pure water, the water level does not rise. However, the oceans are salty and this makes a big difference. When pure water melts into the salty ocean, water level ...
• 6,963

### Can we cool Earth by shooting powerful lasers into space?

Nice idea... but lasers get their power from electricity. If we had lots of spare electricity, we could stop generating more and reduce the energy output from coal or gas powered power stations. So, ...
• 13.4k

### Why is climate change triggering faster rotation?

There are lots of factors besides glaciers that affect the Earth's rotation. Given the sharpness of the change, it seems unlikely to be glaciers which are notorious for moving very slowly. A more ...

### How is it possible that it can get hotter in the car than it is outside?

While respecting the other good and thoughrough answers, I feel I can give you a simple explanation to your exact question. As you mention in your question, ...
• 47.2k

### Why don't solar panels contribute to global warming?

solar panels increase the efficiency of how we 'harvest' this solar energy, reflecting less of it back into space, and turning more of it into en energy (in this case, electrical I’m no expert, ...
• 200
Accepted

### Summer Winter cause

The smaller angle of incidence should have the greater effect, otherwise during the summer the northernmost regions (in the boreal emisphere) would be hotter than the southern ones, and, believe me, ...
• 467