Is the earth geting bigger  if trees grow leaves fall become dirt  every year why would it not?
342822
If you define "getting bigger" as turning gaseous matter (air) and turning into solid (rotting leaves and dead trees + rotting animal bodies and waste), then this is an interesting question, and the answer may be yes.  What we now see as carbon fuels (petroleum, coal, etc.) are the accumulated solids of all the biomass (life) that has ever lived on the planet.  I.e. the mass of a tree + all the leaves it has shed in its lifetime, is way more than the amount of solid nutrients it has absorbed from the soil as it includes tons of solid carbon that was extracted from CO2 in the atmosphere during photosynthesis (and green algae are doing the same in the oceans).  Animals are doing the opposite, eating plants, breathing in O2, and expelling gaseous CO2 back into the atmosphere (as well as a few other obnoxious gasses).  Not to mention the fact that humans are mounting a rather agressive campaign of digging up that old Carbon sludge (oil) and burning it back into the atmosphere as CO2 and CO (carbon monoxide) and even more obnoxious gasses.\n\nSo I don't know which process is faster, the fixing of solid carbon from gaseous CO2 by plants, or the conversion of solid carbon back to gaseous CO2 by animals and Ford Explorers.
521847
I think this is what you're after.\n\nIt is an accident of astronomy that our earth has a tilt of 21.3 degrees.  (That's the current tilt ... it ranges between 21 and 25 degrees every 41,000 years.)  \n\nAs a result, trees far away from the equator see a variable amount of sunlight over the course of one journey around the sun (one year).  Trees (such as palm trees) near the equator (specifically between the tropics) do not see much variability in the sunlight, so the following does apply to them.  \n\nWhen tilted towards the sun, the days are longer, and the sun higher in the sky, and the tree wants as much area dedicated to photosynthesis as possible.  So leaves are good.  \n\nBut when tilted away from the sun, the days are shorter, the sun not as high up, and photosynthesis is more difficult.  The leaves are a premium ... they're consuming more food than they are producing with photosynthesis.  Plus, with temperatures dropping, water in the leaves is in danger of freezing, which burdens the branches with so much extra weight that they can break.  So it is better to shed those leaves for that part of the journey around the sun.  (This is less of a problem with trees, like pine trees, that have needles instead of leaves.)\n\nIs that what your after?  (Great question!)
798758
Seasons reasons \nUnless you live near the Earth's equator, you have no doubt noticed that the weather changes during the year: it is hotter during the Summer, colder in Winter, and somewhere in between during Spring and Fall. These are the seasons, a regular change in temperature, that repeat themselves every year, more or less regularly. \n\nWhat causes these changes? The Sun is our main source of heat, and since these changes are the same every year, it surely has something to do with the movement of the Earth around the Sun. If we get closer to a fire, we get hotter. Could it be then that the Earth gets closer to the Sun during Summer, and farther during Winter?  This idea seems at first to have some merit, until we remember that the seasons get reversed when we cross the equator: when it is Summer in the northern hemisphere, it is Winter in the southern one, and vice versa. And surely Argentina is at the same distance from the Sun as the USA! \n\nBesides, that the Earth's orbit is an ellipse, not a circle, so that at some times the Earth is closer to the Sun than at others; but this ellipse is very nearly a circle, and the relatively small differences in distance to the Sun cannot account for the changes in temperature. And to make things worse, the Earth is closer to the Sun during the northern hemisphere Winter! \n\nWhat, then, is, the cause of the seasons? \n\n\n\nIn the above animation, you can see the Earth during one full year (the animation then starts over again), as you would if you looked straight at it from the Sun. As you can see, the part of the Earth that is directly facing the sun changes with the time of the year. It is the northern half for a while, then moves south of the equator, only to move back to the north again. \n\nWhat causes this? The Earth rotates around an imaginary line passing through the poles, called the axis. This line forms an angle (called the tilt) of 23.4° with the perpendicular to the orbit of the Earth around the Sun. \n\n\n\n\nAs the Earth moves around the Sun, this axis stays always pointing in the same direction. This means that, during part of the year, the northern part of the Earth will lean more directly against the sun, and during other parts the southern part will. \n\n What has this to do with temperature? Well, when the northern hemisphere is leaning away from the sun, the rays coming from it hit this part of the Earth at a smaller angle than on other parts of the world. This means that the same amount of light is distributed over a larger surface, and therefore these places receive less heat than the others. The southern hemisphere is experiencing Summer, the northern hemisphere Winter. In half a year, the situation reverses, and it is now Winter in the southern hemisphere since that part of the earth is now leaning away from the sun. \n\nThe seasons are then the result of this tilt of the Earth's axis. If the tilt of the Earth's axis was 0° there would be no difference in how the rays from the sun hit its different regions, and there would be no seasons. \n\nNot all planets have the same kind of tilt as the Earth has: Uranus, for example, has a tilt of almost 98°. Its axis, then, lies almost on the plane of its orbit, and a day there lasts about as much as one year on Uranus: about 84 Earth-years.
404453
through trees and the process of photosyntesis..\n\nglobal warming occurs because of the excess of certain gases, CO2 and others, in the atmosphere. photosyntesis can help recycle those gases by turning them into oxygen. By cutting down trees there's less ways to get rid of those gases and so they keep accumulating in the atmosphere causing an increase in global warming.\n\nhope that helps
27787
No, it a is fake calamity brought about by liberal Democrat tree-huggers who despise capitalism. \n\nSure the earth may be warming up but man's activity is not causing it. During the middle ages the earth was a lot warmer and that was before cars were even thought of.\n\nDo a couple of things - check out how long volcanoes have been on the planet, how much green houses gases are spewed into the atmosphere during just one eruption, and compare that to the total output of emissions from man's activity since the internal combustion engine was around.\n\nAlso, look at the facts about the correlation between the energy output of the sun and the global temperature and the correlation between global temperatures and greenhouse gas emmissions from man's activity. You'll find the correlation between the sun's temperature is more closely correlated.
864820
Depends on the plant species.  Some trees shed their leaves in fall and don't grow them back until the next spring.  Anyway you're thinking wayyyyyyyyy too much about plants at a lunar base.  Anything brought there would most likely be stuck under some kind lamp to simulate light conditions on the earth, so your problem is moot.
1153063
If the Earth's rotation slowed down gradually over millions of years, and this is the most likely scenario, it would be a very different story. If the Earth slowed down to one rotation every year, called synchronous rotation, every area on Earth would be in either sunlight or darkness for one year. This would be similar to what the Moon goes through where for two weeks the front side of the Moon is illuminated by the Sun followed by the front side being in darkness for two weeks. \n\nBut what if the Earth stopped rotating completely? In that case, one half the Earth would be in daylight for half the year while the other side would be in darkness. The second half of the year it would be reversed. Temperature variations would be far more extreme then they are now. The temperature gradient would affect the wind circulation also. Air would move from the equator to the poles rather then in wind systems parallel to the equator as they are now.
967930
The earth has historically gone through cyclical climate changes and we my or my not be going through one now. As to what is causing this, we can only speculate. I don't think that all of the SUVs or hair spray in the world is going to change our climate.
401449
The earth's rotation does slow down, but not\ndue to the reason you are stating... gravitational\npull of the moon and sun causes more mass to move\ncloser to the surface over time. When an ice-skater\ntwirls around, if the pull in their arms to their\nsides they spin faster, when they push their arms\nout they slow down - in the same way, the earth\nis slowing down, but only by about 1 second per\nseveral years, which is adjusted for by adding\na leap-second from time to time to the atomic \nclock.\n\nThe earthquake in Sumatra on 26-Dec-04 resulted\nin a massive chunk of the ocean floor collapsing\ndown (closer to the earth's center), which caused\na measurable speeding up of the earth's rotation.\nThis was, however, not sufficient to compensate\nfor the otherwise slowing down trend, and only\nmade the adding of a leap-second get delayed...
1105296
Earth is rotating at a speed of about 1100 miles per hour. If our planet suddenly stopped rotating, the atmosphere would still be in motion at that speed. The atmosphere would be moving so fast it would literally sweep the land masses clear of anything not anchored to bedrock, this would mean rocks, soil, trees, buildings, people and animals. All would be swept up into the atmosphere.\n\nIf the Earth's rotation slowed down gradually over millions of years, and this is the most likely scenario, it would be a very different story. If the Earth slowed down to one rotation every year, called synchronous rotation, every area on Earth would be in either sunlight or darkness for one year. This would be similar to what the Moon goes through where for two weeks the front side of the Moon is illuminated by the Sun followed by the front side being in darkness for two weeks.\n\nBut what if the Earth stopped rotating completely? In that case, one half the Earth would be in daylight for half the year while the other side would be in darkness. The second half of the year it would be reversed. Temperature variations would be far more extreme then they are now. The temperature gradient would affect the wind circulation also. Air would move from the equator to the poles rather then in wind systems parallel to the equator as they are now.
1063756
I think its not that earth is bearing any weight.When you put something like a block on the earth,earth exerts a force on the block.BUT the block also exerts the SAME force on the earth.So \nthe earth and the block are attracting each other,or are pulling each other with the same force.Therefore, no matter how much wieght you put on the earth,that thing will also attract the earth with same force.(So Earth wont ever fall!).I hope this helps.
160700
It's not the money!\nIt's the fact that the earth will be terribly out of balance and mother nature will take a drastic nose dive if there are not more forests.  All life will probably die.\nOur atmosphere is created by all the plants and trees giving off all their oxygen.  Earth would not be the beautiful life supporting place that it is without trees.
921300
Our beautiful earth is being destroyed. Thousands and thousands of trees are being cut down in short amounts of time, and trees give us the oxygen we need to survive. People are polluting the earth by littering, dumping trash into rivers, lakes and oceans. Car exhaust and smoking causes smog and makes the oxygen layer in our atmosphere thinner. If we don’t take action, our earth will end up like one big junkyard.
218542
You have to remember plants did not cause the atmosphere to become oxygenic in the primordial days, cyanobacteria did. I'm guessing there are probably trillions of trees in the world.
260515
Apparently, lesser sunlight will get in. That will cause some imbalance on earth.
26143
the earth will probably not exist in the same fashion as it does today.  a meteor will probably hit us and start the life cycle again in the next 200 mill or so.  Probably more water and less land so i figure more water based life will exist
42006
a tree adds a ring of growth each year.  That growth will be dependant on the conditions of its environment that year.   Thick, dense rings indicate much growth (a good growing season), thin rings indicate scarcity/deprivation.