Will we experience significant global warming during this century due to air pollution?

Answer 1

ok here are some facts on global warming that none of the proponents want you to know.
1 volcanoes produce an average of ten times the green house gases than all the cars trucks and factory's every year.
2. throughout the history of the world the earth the globe has seen numerous rises and falls in the temperature it is the natural way of things mother nature has a plan and man cannot control it.
3. this has been one of the coldest winters in the last 50 years globally.
4. global warming focuses on carbon dioxide, hmm what do plants use to make oxygen? oh yea carbon dioxide.
5 if the world were covered entirely by forest the average temperature of the would hover around 115 degrees. Fahrenheit
6. the world has been getting gradually warmer since the revolutionary war. way before the industrial revolution.
really there is nothing to worry about .at least not yet, why all the panic? i am not sure.

one more thing. everyone is worried about the polar ice caps melting and flooding the earth. ok i want everyone tonight to fill a glass with ice and water all the way to the top. then let the ice melt. does the water over flow? no it does not because water actually expands as it freezes, considering that more than 80% of an ice berg is under water logic would state that when the ice melts that the water lever would actually go down. or stay about the same. i am not a scientist but i am a thinker and i dont see anything out there that says anything different to me. and yes i have seen an inconvenient truth.

Answer 2

Without a doubt we will see temperatures rise significantly, we are already seeing this and it's been happening for hundreds of years.

Global warming isn't new, it was first discussed by the scientific community back in the 1700's but back then no-one knew the mechanisms that caused it.

There are two big questions - how much will the world heat up by and what's causing it.

The concensus of opinion is that the world will warm by between 1.4 and 4.0 degrees Celsius (2.5 and 7.2 Fahrenheit). This isn't globally, some places will warm up more than others and some places will actually cool down.

Long before humans first set foot on the earth it was warming up and cooling down of it's own accord. We're currently in a warming up phase and have been for about 11,000 years (since the last ice age). However, the rate at which the world is warming up has dramatically increased in the last 300 years, basically since the Industrial Revolution when we started polluting the atmosphere. The more pollution we create the faster the world warms up.

The effects of global warming are complicated but in a nutshell it means some fertile areas will become deserts, sea levels will rise and low lying areas will be flooded, weather patterns will change and there will be more extreme weather.

There are people who, for whatever reason, deny global warming is happening but the evidence is overwhelming. No serious scientist disputes the fact the world is warming up but there is dispute as to how much and why.

To go through Big John's points...

1) Volcanoes - The biggest volcanic eruption in recent times was Mount Pinatubo in 1991. It added 30 million tonnes of carbon dioxide into the atmosphere. Around the world volcanoes produce about 110 million tons of CO2 each year, about 1% of the 10 billion tons created by mankind.

2) Mother Nature - No-one disputes the earth warms and cools of it's own accord. But it's only in the last 300 years that mankind has significantly added to the warming. The additional burden caused by mankind is the over-riding problem.

3) Coldest Winter - Locally it may have been but here it's been one of the warmest on record. In any event, climate change occurs over a long period of time. There will always be one offs. Just because it's dry today doesn't mean we're in the middle of a drought. There are a huge number of factors which affect weather on a short term and local scale. Looking at the bigger picture every one of the hottest years on record has occured recently.

4) - Carbon Dioxide and Plants. It's only the media that focusses on carbon dioxide, there are many other greenhouse gases such as methane and sulfur dioxide which plants don't absorb. In any event, deforestation is dramatically reducing the ability of plants to absorb carbon dioxide and we're producing more of it than ever. In the past there was a balance, now there's an excess of CO2. Consider a lawn - every night you water it and there's not a problem but now take away some of the lawn and put more water on every night and you end up with a muddy mess.

5) - Forests. The figure is completely wrong and I've no idea where it came from. A few hundred years ago great swathes of the planet were covered in forest and that had little bearing on the world's temperature. Europe used to be one gigantic forest but nowadays there's many parts where less than 1% of the original forest remains. On that basis the temperature of Europe should have plumetted - it's increased.

6) World Getting Warmer. The general trend has been for the world to get warmer since the last ice age but the rate of increase has dramatically risen in the last 300 years. The further increase is directly proportional to the amount of pollution created by mankind.

7) Polar Ice Caps - The ice is ABOVE sea level. The logic of John's argument would only make sense if the ice were below sea level. To use his analogy - fill a glass with water and ice but have lumps of ice sticking up above the top of the glass. When the ice melts the glass inevitably overflows. The depth of the polar ice caps is up to 4000 metres - about the same height as the highest mountain in Continental America (Mount Witney). If we were only talking about icebergs melting then the level of water would remain exactly the same but it's the polar ice caps themselves that are melting.

Answer 3

through natural, internal processes and in response to variations in external "forcing" from both human and natural causes. These forcing factors include 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 identifies greenhouse gases as the main influence. The major natural greenhouse gases are water vapor, carbon dioxide, methane, and ozone.

Adding carbon dioxide (CO2) or methane (CH4) to Earth's atmosphere, with no other changes, will make the planet's surface warmer. Greenhouse gases create a natural greenhouse effect without which temperatures on Earth would be an estimated 30 °C (54 °F) lower, so that Earth would be uninhabitable. It is therefore not correct to say that there is a debate between those who "believe in" and "oppose" the greenhouse effect as such. Rather, the debate concerns the net effect of the addition of greenhouse gases when allowing for compounding or mitigating factors.

One example of an important feedback process is ice-albedo feedback.[2] The increased CO2 in the atmosphere warms the Earth's surface and leads to melting of ice near the poles. As the ice melts, land or open water takes its place. Both land and open water are on average less reflective than ice, and thus absorb more solar radiation. This causes more warming, which in turn causes more melting, and the cycle continues.

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 by increased greenhouse gases. 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.[3]

Answer 4

Yes, really serious problem!
Our earth can not give off energy from sun due to air pollution. It's green house effect
I am from Vietnam, scientists predict that 17milion Vietnamese will have no land to live because of the sea floods. And these sea floods relate to the global warming
But not only Vietnam, many countries having long beaches will take the same disadvantage
keep our air pure please everybody

Answer 5

international Warming is actual. that is an person-friendly ingredient to calculate if the accepted earth temperature is starting to be. air toxins is actual. that is person-friendly to seem at a smoke stack of many factories and see chemical substances being spewed out into the ambience. the actual question is what influence does air toxins (human enter) have on international warming. international Warming advocates trust that maximum or each and each and every of the warming is by way of air toxins even as those hostile to international Warming trust it has a minimum result. My personal opinion is that it extremely would not make any enormous difference. We (as human beings) could attempt to stay with as little result on nature as a possibility so we could continually attempt to locate strategies to clean up after ourselves.

Answer 6

no body actually knows for sure if pollution from cars and such really causes global warming.