Global Warming?

Question

will it destroy us and our earth??

Answer 1

It will not destroy us now in this century but it can for our futute generations to come of we dont do someting about it now. the weather will change dramatcilly if we dont try to prevent alot of things now..thats the whole reason why people are now starting to worry about it now because it was talked about 10-30 yrs ago and no one did nothing then, so now someone has to do something now. we could of prevented alot of things then too.


Since the Industrial Revolution (around 1750), human activities have substantially added to the amount of heat-trapping greenhouse gases in the atmosphere. The burning of fossil fuels and biomass (living matter such as vegetation) has also resulted in emissions of aerosols that absorb and emit heat, and reflect light.

The addition of greenhouse gases and aerosols has changed the composition of the atmosphere. The changes in the atmosphere have likely influenced temperature, precipitation, storms and sea level. However, these features of the climate also vary naturally, so determining what fraction of climate changes are due to natural variability versus human activities is challenging.

The following pages provide a summary of the atmosphere and climate changes observed during the Industrial Era and, where possible, current understanding of why the changes have occurred:

Atmosphere Changes
Temperature Changes
Precipitation and Storm Changes
Sea Level Changes


(temperature changes)


Records from land stations and ships indicate that the global mean surface temperature warmed by between 0.7 and 1.5ºF during the 20th century (see Figure 1). These records indicate a near level trend in temperatures from 1880 to about 1910, a rise to 1945, a slight decline to about 1975, and a rise to present (NRC, 2006). Warming is now occurring over most of the globe and is consistent with the global retreat of mountain glaciers, reduction in snow-cover extent, the earlier spring melting of ice on rivers and lakes, and increases in sea-surface temperatures and ocean heat content (NRC, 2001).

According to the National Oceanic and Atmospheric Administration's (NOAA) 2005 State of the Climate Report and the National Aeronautics and Space Administration's (NASA) 2005 Surface Temperature Analysis:

Since 1900, the average surface temperature has warmed by about 1.2-1.4 ºF.
Since the mid 1970s, the average surface temperature has warmed about 1 ºF.
The Earth’s surface is currently warming at a rate of about 0.32ºF/decade or 3.2 ºF/century.
The five warmest years over last century have likely been: 2005, 1998, 2002, 2003, 2004. The top 10 warmest years have all occurred since 1990.
Additionally (from IPCC, 2001):

The warming trend is seen in both daily maximum and minimum temperatures, with minimum temperatures increasing at a faster rate than maximum temperatures.
Land areas have tended to warm faster than ocean areas and the winter months have warmed faster than summer months.
Widespread reductions in the number of days below freezing occurred during the latter half of the 20th century in the United States as well as most land areas of the Northern Hemisphere and areas of the Southern Hemisphere.

Answer 2

Only us. The earth is mostly a big rock and will endure, and nature, given time, can recover from a lot.

But there are six billion or so humans. This is a lot of people and we are only all here because of an awful lot of agriculture and an awful lot of food distributed through a lot of complex economies. We are not all raising our own goats and growing our own yams.

Should sea levels rise and climate zones shift, an awful lot of homes will be gone, some whole cities, some whole countries, and an awful lot of food will no longer be growable where it is now. The consequences are liable to be ugly. A lot people will be dead and a lot of others poor and miserable.

The climatic predictions, the sea level and temperature stuff, is all now a matter of a big body of evidence and decently worked out science. These people who claim it is all hoax are just plain wrong.

They only call you chicken little until the thing you were warning about comes true ... then they call you Sir Winston.

Answer 3

Only us. Probably won't destroy the Earth, Though, since the Earth has endured major climatic changes in the past, and it eventually recovered even if it took a long time to do so.

Answer 4

Oh no! Not the bad consequences! We humans have such big egos. To think that we have such an impact on a thing as great and powerful as the earth. If the earth were alive it would laugh at us. Global warming is propaganda. You don't have to believe me. If everyone would really LOOK at the evidence they would see it for themselves. You don't have to take what every scientist with his head poking out of a politicians back pocket says and treat it as gospel. If anything you should be skeptical from the start.
For those who are really curious about whats really going on read this transcript from The Larry King Show with Bill Nye(The Science Guy), Weather Channel host Heidi Cullen, and MIT Meteorologist Richard Lindzen.

http://epw.senate.gov/public/index.cfm?FuseAction=Minority.Blogs&ContentRecord_id=7e60e3fa-802a-23ad-4291-e3975cbb96cb&Region_id=&Issue_id

Answer 5

global warming is the gradual increase in earth's average temperature. Its just like a glass house which allow heat to pass in but not out .
Our earth's atmosphere acts like a glass house, it allow heat to pass through it, but stops the heat rays reflected from the earth's surface to go out.
do u know a thing? earth will become a large ice ball without global warming
but the excess of CO2 present n the earth's atmosphere (due to our activities ) increases the effect of global warming, thereby increasing earth's temp. . SO its our duty to protect earth from destruction.
AVOIDING POLLUTION GREATLY REDUCES GLOBAL WARMING

Answer 6

Destroy us ? possibly.
Destroy the Earth? Doubtful- more likely to change it significantly, for a long time.

All we have to do is poison the atmosphere enough to kill humans / mammals. The Earth would recover in a few million years. How long would it take for another species to evolve?

Answer 7

Some people don't even believe it exists.

So if it does exist, it will affect our earth in the future. And ultimately destroy the planet.

Or if it's not real, then it will just remain a hallucination in scientists' heads.

Answer 8

it can radically change the global climate which will affect the weather,sea levels would rise,causing a chain reaction of events, food supply shortage, famine,which will lead to wars and chaos,humanity will destroy itself, the earth will survive

Answer 9

In the immortal words of Mahatma Gandhi, you have to "be" what you want the the future to be. In other words, do what needs to be done to help reverse this. Don't drive to the store if it is only a few blocks away. Ride your bicycle to work if possible. Recycle - it reduces our dependence on ANY oil.

Answer 10

dear friend, if people keep on spoiling the earth and not to be careful about their activities you should be sure we will see the bad consequences