Global Warming Question?

Question

If it did exists, who says it's not because of the earth getting closer to the sun?

Answer 1

It is not difficult (for scientists) to calculate how much closer the earth would have to be to the sun to create the observed temperature increase in the past 150yrs. It is extremely unlikely that that much orbital change occurring over such a short (astromically speaking) period of time would not exhibit other obvious changes (such as the apparent size of the sun in the sky).

Arun K: We would always have four seasons no matter what the distance to the sun is. The seasons come from the tilt of the earth with respect to its orbital plane, and there are four extrema: north pole facing sun, south pole facing sun and two where neither faces the sun. However, the temperature extremes between winter and summer would likely get worse.

Answer 2

Hey bloke, that is an example of parallel thinking.

But I assure you that earth has never strayed inwards from its orbit. As a matter of fact, people believe that the earth is moving away from the sun as the sun grows older. But it is very negligible. Say micrometers a millenium.

Know what, global warming is totally a different concept. It talks about blanketing the earth with a quilt of Non-Conducting & Non-Convecting medium. Just like you pull over a quilt in the winter to keep yourself warm.

The earth absorbs heat from the sun during the day. At night it is expected to give it back into the space so as to maintain a normal temperature. But the greenhouse gases envelopes the earth and prevents heat loss. Jus like your quilt.

It cannot be because the earth is moving closer to the sun. This can be explained by the seasons. We still have four seasons, approximately 3 months each. This means that the length of the orbit and the time taken by the earth to go around the sun is the same. But if the earth were moving closer to the sun, then the time for each season would get lesser. We might have more than four seasons every year.

Answer 3

global warming is due to the trapping of the long wave solar radiation of the sun and rereflecting them to the earths surface creating a heat trap.even if we were closer to the sun the reason would not change.

Answer 4

Coincidence that energy use and temperature going up so dramatically at the same time within such a short time span? There's nothing to indicate we're getting closer to the sun due to years remaining same length and I'm sure observation of star locations throughout the year.

Answer 5

I don't know who said that or who will say that because I believe its about the greenhouse effect due to air pollution that's why heat from the sun is being trapped inside earth's surface.

Answer 6

the higher CO2 & other green-house gases in the atmosphere

Answer 7

possible, still whatever intellects plan, we need to contribute at least a 00.001 % its our duty

Answer 8

me