Would there be globle warming if there were no people on the planet ?

Answer 1

yes. Did you know that 3 major volcanic eruptions spanning from 1886-1943 spewed more CO2 into the atmosphere than humans have EVER put into the atmosphere in the history of the industrial age? We really are not making that large of an impact on the environment. Despite what the liberals want you to think. Its way more political than it is scientific. In the last 6 years the Earth's MEAN temperature has risen .001 degree. Thats less than the margin of error, which means that it may not have risen AT ALL or may have even COOLED. IF global warming is occuring then it is a natural cycle of the Earth and will not have any major impact on the climate of this planet for at least 500 years... i dont plan on living long enough to have to worry about it.... do you?

Answer 2

Look. I am not pretending to be a scientist, but if you believe in the theories that Science has produced (such as the Ice Ages and how the dinosaurs died) you have to understand that without a natural mix of global warming and cooling trends, these things could have never happened. The whole idea of human-caused global warming is rooted in a deep need in people to believe that we are the be-all and end-all of civilization. It's just not true. To admit that the Earth works without our help or interference is an admission that we are powerless on this planet, and that is something that most people are not willing to do. If you need reasons to believe that humans are "top dog" on this planet, you will believe that we are destroying it. Most of the scientists that are on this bandwagon are probably close to losing the government grants that are provided for research. We have not "cured" a disease in a few decades, and science is proving to be obsolete. Championing the cause of Global Warming is just another way to protect scientist's lively hood.

Answer 3

Yes, however, current warming trends are largely attributed to anthropogenic influences on the otherwise natural carbon cycle. Because co2 and H20 are the two major greenhouse gases, any slight increase will have a huge effect on how much heat is trapped in the atmosphere.

Natural long-term global warming and cooling has four main contributory factors

the Earth's orbit around the sun and the tilt of its rotation axis
This is thought to be the main causes of long-term variations in gobal mean temperatures...I wont go into great details here...but just casually mention that the tilt alters latitudinal and seasonal distributions of solar radiation (you can do a search on wiki)

Other important factors that have contributed to long-term variations in the global climate are the areas, positions and shapes of oceans and continents - long-term increase in solar luminosity and variations in atmospheric composition (i.e volcanic aerosols, low cloud cover, co2 content of the Earth's distant past)


EDIT:

just to counter rwhitney, volcanic activity certainly does account for rising co2 levels in the past, however, what you have declined to mention for whatever reasons? is that whilst noticeable, the effects on global climate have been short-term.

In 1996 the level of carbon in the atmosphere was measured at approx 760 x 10^12KgC, that measurement was about 30% higher than pre-industrial levels of about 590 x 10^12KgC estimated from ice-cores.

The changes in co2 levels we are seeing now, have been increasing year on year and are expected to rise even further, there is zero evidence that volcanoes are the main contributory factors in these rises, quite the contrary.

Answer 4

The ozone layer, a boundary around our ecosystem, has been deteriorating. this could enable the sunlight's risky rays into our ecosystem. The ozone layer has been soaking up most of the warmth from the sunlight. With it broken, the sunlight's warmth can quite enter our planet in lots extra concentrated factors. this could reason the polar ice caps to soften, making use of species to extinction that survive those and additionally destroying residences too close to to the sea coast. The deterioration is brought about via greenhouse gases given off via pollution. so some distance, we've repaired the hollow tremendously lots, yet we nevertheless could stop polluting to maintain our planet risk-free.

Answer 5

Yes and No.

Ice ages (defined as being a period of global cooling) and Thaws are actually pre-existing phenomenon to Earth. Becuase of the complexity of these systems thgough it is difficult to explain it simply. But for example the rising of the Himalyayain mountain range is thought to have diverted global windbelts and high altitude jet streams sufficently to be partly accountable for why bits of Europe are no-longer frozen wastelands.

Other planets experience global warming on much larger scales e.g. Venus. The reason why ppl contribute to global warming is because of what is being released into the atmosphere and the destruction of natural balanced cycles such as the carbon cycle or the nitrogen cycle and a whole host of other things.


However volcanic eruptions have both caused mini-ice ages as well as having likely alleviated them in the past.. The largest ones have released so huge a mass of particles into the atmosphere that it has affected global weather patterns such as in 1815 Tambora Volcanoe exploded and so in 1816 it became known in Europe as the Year of the of the perpetual winter.

So there is a natural cyle of thawing and freezing.

Global warming in the case of the media refers to the concept that ppl.'s activities and emissions of substances such as Carbons and particles which attack the Ozone layer is contributing to the trapping of solar radiation and the increase in Albedo before/if ir escapes.

This occurs naturally, but human activity has increased it's rate and effects.

human activity on global climate change is best descrived as being a global un-controlled experiment on something we don't understand and will likely be unable to take back

Answer 6

I suppose this would have been true then also, as many natural phenomenon like volcanic eruptions also add to the greenhouse gases . but , what humans have done is to enhance the rate of increase in the co2 level and that too in the recent past . an exponential increase has been measured in the emissions since 1970 owing to rapid industrialization.

Answer 7

No there would be no global warming if there were not any people on the planet. Just think, if not for humans the earth would be completely frozen right now and would have never come out of the last ice age. Isn't that amazing?

Answer 8

In a sense, yes.

The planet has gone through many periods of warming and cooling that were perfectly natural.

The "global warming" that we tend to speak of as of late is a discussion of how human activity is exacerbating and accelerating this natural process.

Answer 9

Probably not. Global warming is primarily due to the increased amount of carbon dioxide being put into the air. The majority of that gas is coming from cars and factories, which is through the burning of fossil fuels. Those fuels would not be burned without people mining them. Without people, Earth is a self-maintained biosphere.

Answer 10

Yes, and global cooling too in the natural cycle of the World.