Is Sun-light/heat diminishing due to pollution? will it lead to vast distruction to earth?

Answer 1

Pollution can cause an increase of the Earth's albedo which could reflect light back into space. Unfortunately carbon dioxide and some other greenhouse gasses do the opposite: they trap heat, and that effect is much greater than increased albedo. Global warming is caused by this increase of greenhouse gasses but it probably wont lead to vast destruction, at least not by nature. Certain nations will benefit from warming, others will lose. This will cause political instability. Wars resulting from political instability certainly can cause mass destruction.

Unfortunately sunlight is very slowly INCREASING. Not very fast though. People on this board frequently ask about the end of the world and the most frequent answer is roughly 4 billion years when the sun enters it's red giant stage. At this point all life will have been dead for about 3 billion years. As the sun grows hotter, temperatures on Earth will slowly increase. Atmospheric changes will occur due to changes in the rock cycle. In something over 100 million years the only living things are likely to be bacteria in the oceans. As the sun grows hotter, they too will die.

Answer 2

Heating up due to pollution is more of a concern as more heat from the sun is trapped into the atmosphere by increased greenhouse gasses.
Vast destruction of Earth is probably a bit extreme to imagine -the planet will continue but change and there could be destruction of many things we take for granted due to climate change.

Answer 3

First: sunlight + pollution = smog. Bad but getting better.

In the youth of the industrial era chimneys churned out sooth and smoke and all kinds of pollutants. This caused a haze that has blocked out sunlight for a long time. At the mean time one of the main substances produced, CO2, has been building up. So the haze cooled the earth while the CO2 trapped heat. The effects of either was cancelled out. But now, with increased environmental concern, industry is getting better at cleaning their exhaust and they are not causing as much chill effect as they once did. But the CO2 is still there and its build up is accelerating. So, ironically, cleaner industry can lead to serious environmental consequences for us. And, indeed, the number of weather related disasters have increased by 400% in the past 40 years...

Answer 4

The sunlight is not diminishing due to pollution but the terrestial radiation is trapped by the pollutants increasing the greenhouse effect and thereby leading to global warming which in turn will cause extreme weather conditions in future.This is explained below.
Part of the solar radiation which reaches the earth's surface,is absorbed by the earth's surface and remaining part is reflected back into space.Solar radiation that is absorbed by the earth is transformed into heat.Part of this heat is radiated out to space as long-wave radiation,part carried upward as sensible heat by convection and part is absorbed in evaporation processes from water surfaces.The remaining part penetrates downward and raises the temperature of the earth's surface.
The heat which is released to atmosphere by the above convection and long-wave radiations are trapped by the air pollutants leading to increase in the greenhouse effect.
Cities consume enormous amounts of energy in heating,cooling and transportation.This energy is converted into heat. This heat is trapped under a layer of pollution that arches over the cities and prevents it from escaping leading to the formation of heat islands over the cities with the result the cities are typically several degrees warmer than the surrounding rural land.So,this also increases the greenhouse effect.
Action of sunlight on primary emissions mainly from cars produce ground-level ozone which is an air-pollutant.Ozone is the key component in smog which is also an air pollutant.Ozone is also one of the greenhouse gases.So, these pollutants are responsible for trapping the heat and thereby leading to global warming.

Answer 5

According to things I have read and seen, there is evidence for a reduction in the amount of sunlight reaching the earth`s surface. It is on the order of 15 % since around 1950, depending on what you want to believe the evidence indicates. It will not lead to global destruction, but it is another good reason to limit air pollution.

Answer 6

Yeah its diminishing due to pollution and we had to take care of this. Its we who had to take some steps to prevent this. Well its not destruct the earth soon, but if it continues in the same way then it may surely affect the earth severely. We had to think about curtailing the pollution.

Answer 7

No, sunlight/heat is NOT diminishing. The issues that face us from pollution is the greenhouse effect. (See Venus for the net effect of a runaway greenhouse)

Answer 8

i don't think so...the air pollutants + heat of the sun can't mix together..