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  • If climate change is man made, what caused previous climate shifts?

    I think global warming could well be a natural phenomenon. A lot of opinion in the area seems to be based on tracking the trends in world weather over the last few hundred years, or even less. However there is plenty of evidence that the planet has experienced extremes of climate in the distant past as well. This could not possibly have been caused by man. We don't fully understand what caused these previous climate changes so how can we be sure it is not for the same reason now?

  • It is natural

    There are weather and oscillation cycles that provide for natural changes in climate patterns and overall temperature of the planet. That doesn't deny human culpability, but even prior to human involvement there were natural cycles occuring. It is when these cylcles reach natural highs combined with human effects that things are dangerous.

  • Yes, global warming is a natural phenomenon

    Global warming is a natural phenomenon and has occurred various times throughout the history of Earth's existence. Currently the Earth is going through a warming period that is likely being quickened and more extreme due to excess emissions of carbon into the atmosphere due to human consumption of various forms of energy such as burnin of fossil fuels.

  • Volcanoes solar flares

    Many things contribute to global warming. How smug and self important we are to think that we can impact our planet so negatively. One volcanic eruption can produce more CO than all the CO man has or could possibly produce. An increase in solar flare activity can and does affect the atmosphere at our poles causing holes in it allowing the suns rays to melt the ice packs and warm our seas. Deforestation has increased at an alarming rate causing less absorption of CO, And thus less Oxygen. A polar shift is currently in progress that could have catastrophic results for planet Earth.

  • Oh the self-importance of the human race.

    Climate change is a natural reoccurring phenomenon. The Earth has gone through many climate changes throughout history, Even when there were no humans on the planet. Humans need to get over their arrogance and just face the fact that they are irrelevant in the vastness of the Universe and are nothing more than a parasite.

  • Look to the geological record

    The scientific meaning of the expression "global warming" is based on geological records which show that global temperatures have been in constant change for hundreds of millions of years. Also, Humans are not the only species to have caused global temperature change over geological history.
    However "global warming" these days in the popular domain refers to whatever contribution the burning of fossil fuels has made, What effects there will be and what (if anything) we can do about it.
    So to answer the question, We first need to clarify whether we are talking about the scientific global warming, In which case the answer is yes it is natural and has been happening episodically for millions of years before humans ever evolved, Or the popularised version in which case we are basically talking about a shit fight between various politically motivated groups on both sides and their representation in the popular media, In which case I have neither an opinion or an interest.

  • All this time. . . .

    . . . . . The water on the earth has been relocating and displacing itself. Centuries ago, Crustaceans lived on top of the mountains in Chile. The fossils are all that is there now. We humans create conveniences on eart for us (roads, Riverways, Etc). We feel the earth should stay the way we put it, Right? Wrong. She is in charge. Always has been and always will be. Precipitation and evaporation are an ongoing process. Where we are now, May not exist as land one or vice versa as we see in Chile.

  • Mommy mad muy

    Know what really stinks? The gas that livestock such as cattle release during digestion. These animals produce a quarter of the anthropogenic methane in the U.S.

    What doesn’t stink is that Pennsylvania State University researchers, led by Alexander N. Hristrov, have now demonstrated that feeding 3-nitrooxypropanol (3NOP) to dairy cows over a 12-week period reduces the animals’ methane emissions by 30% (Proc. Natl. Acad. Sci. USA2015, DOI: 1073/pnas.1504124112). 3NOP inhibits methyl coenzyme-M reductase, an enzyme used by bacteria in a cow’s gut.

    These symbiotic bacteria produce methane when they help cows digest grass and other fiber-rich foods in the animals’ diet. To test the possibility of mitigating this production without disrupting a cow’s digestion, Hristov and his colleagues mixed additives containing three different concentrations of 3NOP as well as a placebo additive into cattle feed. Then they administered it to 48 Holstein cows for three months.

  • Cows fart methane

    Know what really stinks? The gas that livestock such as cattle release during digestion. These animals produce a quarter of the anthropogenic methane in the U.S.

    What doesn’t stink is that Pennsylvania State University researchers, led by Alexander N. Hristrov, have now demonstrated that feeding 3-nitrooxypropanol (3NOP) to dairy cows over a 12-week period reduces the animals’ methane emissions by 30% (Proc. Natl. Acad. Sci. USA2015, DOI: 1073/pnas.1504124112). 3NOP inhibits methyl coenzyme-M reductase, an enzyme used by bacteria in a cow’s gut.

    These symbiotic bacteria produce methane when they help cows digest grass and other fiber-rich foods in the animals’ diet. To test the possibility of mitigating this production without disrupting a cow’s digestion, Hristov and his colleagues mixed additives containing three different concentrations of 3NOP as well as a placebo additive into cattle feed. Then they administered it to 48 Holstein cows for three months.

  • Indeed It Is

    I think that humans DO contribute to global warming, but not as much as natural causes, such as the sun and other things. The sun is indeed warming p, and the natural amount of greenhouse gases in the atmosphere keep the heat trapped. Thank you for reading a child's take on global warming. :)

  • No it is not a natural phenomenon

    I can clearly see where you are going with your argument but proper scientists make a record of temperatures overall and it corresponds with the amount of greenhouse gasses we release in the atmosphere coincidence? I think not! Also by the way the little we produce goes a long way. 8 degree change in your town noone talks about it 8 degree change overall. Flood, Ice Caps melt it many places it would get incredibly hot species would go extinct with just 8 degrees. And thats just 8 degrees overall

  • No Question About It

    The facts are all there. If you do not think humans are to blame, you have no understanding of science. The amount of evidence against humans is astounding. We produce gasses like carbon dioxide everyday by burning fossil fuels in huge amount. Carbon dioxide is what we call a greenhouse gas. Greenhouse gasses work in our atmosphere by trapping sunlight. In other words, sunlight goes through the atmosphere, and the greenhouse gasses keep them from leaving. This is causing a huge rise in temperature. The rise and fall of the temperatures in Earth's history have been at a steady rate in the past. This jump in temperature is not steady. This should not even be a question of debate. It astounds me to think people without an environmental scientific background at all try to argue with brilliant people with ph.D.S in environmental sciences.

  • No, global warming is not a natural phenomenon.

    I do not think that global warming is a natural phenomenon. And one of the reason I believe that is because I do not even believe that it is real. There is not enough evidence to suggest that global warming is even taking place. I think that more research is need before people say global warming exists.

  • It is a human contribution.

    If it weren't for us humans there would be no fossil fuels meaning there would be no factories or power plants polluting the air. This would mean that the atmosphere wouldn't have any carbon dioxide in it, meaning there would be no greenhouse effect. There would be no climate change if it weren't for us humans.

  • It is not a natural phenomenon

    In the last 50 years or so, right when we started to release extreme amount of carbon dioxide was exactly when the temperatures have started rising. And experts have been seeing this trend continuing and becoming more serious as we hit the 2000 marks. And in the last 16 years, we have hit the 16 hottest years because of global warming

  • Kake kake kake

    Kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake kake

  • Driving cars and factories

    Driving cars pollutes the air because of the gas and carbon dioxide.Factories make things but the gases from it also pollutes the air. Why not by electrical cars or powered cars.Don't burn as much fossil fuels. Don't produce as much gas because your polluting the air! That's what i have to say. P.S. This is a kid :):):):P:):):P:):):):P:):P

  • It just dosent occur randomly

    Many people think that global warming exists just because it does. It dosent! Global warming is happening because of the abuse we are causing the earth. Ignoring wont work because if we do then we'll all be fried meat in about a short amount of time. Most of all the the carbon dioxide comes from us the humans because WE JUST NEED RUNNING EVERYTHING WITH GAS AND OIL AND COAL. There are two ways this could go either we turn to cleaner energy or we run out of those materials to burn. Global warming dosent naturally occur it happened because of US! The other species died in incidental extinctions but we'll die because of ourselves.

  • Yes,global warming is a natural phenomenon.

    As a matter of fact,global warming is really occurring as the climate dramatically changes period by periods the only reason to blame is the cause of "INDUSTRIALIZATION"and that is a man-made phenomenon think that we humans has to look for a possible way to reduce the causes of industrialization and live in a better earth free from global warming.

  • No, global warming is not a natural phenomenon.

    Since the mid-19th century, the amount of carbon dioxide have been rapidly rising, which it never happen in the early year of earth. Also that the sun is not responsible for the rising of temperature in the earth because NASA satellite was sent and detected that the solar irradiance have drop.


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