poll global warming opnions?

Question

ok so when there was a dust bowl out west in the past centuries what was that blamed on...and what do you all think if this was just some money making scam because as i see it the earth moves closer to the sun makes it warmer or if the earth tilts on its axis slowly enough we change weather patterns.. so what do you think about global warming..

Answer 1

It's true ! There were many Ice ages before us, the earth warmed up again, it did this a few times before we got here, I'm sure it will do it again, weather is "Cyclical", Al Gore is an Idiot, we just had the coldest April on record, "Where's AL NOW" ? If you think that the world is going to warm up, and melt in your life time, you're as big an as-hole as "AL GORE" !

Answer 2

i agree we're going through a global warming, but i think its profundity has been completely over-inflated. a few decades ago it was pretty common belief that the human race would be eliminated in another ice age, because the temperature of the earth was dropping so rapidly. now that it's been rising we're all so quick to go the other way. i honestly believe that the earth goes through periods of warming and cooling.

however i agree that our contribution to environment's deterioration has been significant & if a supposed global warming is what it takes for the collective awareness to increase, then that's not such a terrible thing either.

i'd also like to note that while al gore makes some excellent points in his documentary/book he has also been caught out inflating findings to establish his case. it's ridiculous that watching a doco somehow equates to a deep understanding of the situation. it does not. in fact, it's akin to brainwashing. anyone who truly cares about climate change will read the literature before forming a strong opinion.

Answer 3

THE thing about globle warming , is that our planet has known for many years about it , , and now that our planet is being affective by it we now have every goverment in the world worried about it , , but what are they doing about it , ? ask yourself have you seen any thing different in your part of the world that has made globle warming different in the lasst 20 years i think not , i mean take the next Olymipic games what is that country going to do ?? they are going to stop people driveing while the games are on , and then i bet you that those cars will be back on the street , makeing more pollution . the 178 countries of the world should get to gether and do something about it , now

Answer 4

Do you watch X-files ? I love that show, You asked about global warming ? If you watch that show you would know that the ships are under the ice ,and because of that the ice is melting , now you know why we have global warming, Have a great day =] Flowers

Answer 5

The harmful gases trap the heat that comes from the sun.

It shouldn't be like that coz the sun's heat should go to Earth then just bounce back, leaving us. Just to keep us warm. Yet, if the heat is trapped, we'll all gonna suffer this global warming.

Answer 6

I think it's real.And the live earth concert wasn't money-making scam, it was great!I especialy loved metalica.And I watched it on TV, son didn't wasted money!

Answer 7

I think you need a complete study course on gobal warming before trying to cite examples to bolster your position.

Answer 8

Main articles: Attribution of recent climate change and scientific opinion on climate change
The climate system varies through natural, internal processes and in response to variations in external forcing factors including solar activity, volcanic emissions, variations in the earth's orbit (orbital forcing) and greenhouse gases. The detailed causes of the recent warming remain an active field of research, but the scientific consensus[10] identifies increased levels of greenhouse gases due to human activity as the main influence. This attribution is clearest for the most recent 50 years, for which the most detailed data are available. Contrasting with the scientific consensus, other hypotheses have been proposed to explain most of the observed increase in global temperatures. One such hypothesis is that the warming is caused by natural fluctuations in the climate or that warming is mainly a result of variations in solar radiation.[11]

None of the effects of forcing are instantaneous. Due to the thermal inertia of the Earth's oceans and slow responses of other indirect effects, the Earth's current climate is not in equilibrium with the forcing imposed. Climate commitment studies indicate that even if greenhouse gases were stabilized at present day levels, a further warming of about 0.5 °C (0.9 °F) would still occur.[12]

Solar variation

Solar variation over the last 30 years.Main article: Solar variation
Variations in solar output, possibly amplified by cloud feedbacks, may have contributed to recent warming.[25] A difference between this mechanism and greenhouse warming is that an increase in solar activity should produce a warming of the stratosphere while greenhouse warming should produce a cooling of the stratosphere. Reduction of stratospheric ozone also has a cooling influence but substantial ozone depletion did not occur until the late 1970s. Cooling in the lower stratosphere has been observed since at least 1960.[26] Thus, solar activity alone is not the main contributor to recent warming.

Phenomena such as solar variation combined with volcanoes have probably had a warming effect from pre-industrial times to 1950, but a cooling effect since 1950.[1] However, some research has suggested that the Sun's contribution may have been underestimated. Two researchers at Duke University have estimated that the Sun may have contributed about 40–50% of the global surface temperature warming over the period 1900–2000, and about 25–35% between 1980 and 2000.[27] Stott and coauthors suggest that climate models overestimate the relative effect of greenhouse gases compared to solar forcing; they also suggest that the cooling effects of volcanic dust and sulfate aerosols have been underestimated.[28] Nevertheless, they conclude that even with an enhanced climate sensitivity to solar forcing, most of the warming during the latest decades is attributable to the increases in greenhouse gases.

More studies on the extent of warming caused by changes in the brightness of the sun have been conducted. Scientists from the United States, Germany, and Switzerland under Heliophysics, Inc. and the National Science Foundation calculated that there has been no net increase of brightness over the last thousand years.[29] All increases in brightness were the result of solar cycles, and the small increase in brightness over the last 30 years is .07 percent. Scientists say that this small increase is far too minute to contribute to global warming.


History

Two millennia of mean surface temperatures according to different reconstructions, each smoothed on a decadal scale. The unsmoothed, annual value for 2004 is also plotted for reference.Main article: Temperature record

From the present to the dawn of human settlement
Global temperatures on both land and sea have increased by 0.75 °C (1.35 °F) relative to the period 1860–1900, according to the instrumental temperature record. This measured temperature increase is not significantly affected by the urban heat island. Since 1979, land temperatures have increased about twice as fast as ocean temperatures (0.25 °C per decade against 0.13 °C per decade).[30] Temperatures in the lower troposphere have increased between 0.12 and 0.22 °C (0.22 and 0.4 °F) per decade since 1979, according to satellite temperature measurements. Temperature is believed to have been relatively stable over the one or two thousand years before 1850, with possibly regional fluctuations such as the Medieval Warm Period or the Little Ice Age.

Based on estimates by NASA's Goddard Institute for Space Studies, 2005 was the warmest year since reliable, widespread instrumental measurements became available in the late 1800s, exceeding the previous record set in 1998 by a few hundredths of a degree.[31] Estimates prepared by the World Meteorological Organization and the Climatic Research Unit concluded that 2005 was the second warmest year, behind 1998.[32][33]

Anthropogenic emissions of other pollutants—notably sulfate aerosols—can exert a cooling effect by increasing the reflection of incoming sunlight. This partially accounts for the cooling seen in the temperature record in the middle of the twentieth century,[34] though the cooling may also be due in part to natural variability.

Paleoclimatologist William Ruddiman has argued that human influence on the global climate began around 8,000 years ago with the start of forest clearing to provide land for agriculture and 5,000 years ago with the start of Asian rice irrigation.[35] Ruddiman's interpretation of the historical record, with respect to the methane data, has been disputed.[36]

Answer 9

its true and i think we have a difficult time ahead of us. and if we don't take action, things are gonna get worse.

Answer 10

We aren't going to die. Lets stay positive.