What can be done about Global Warming?
My point of view is that Global Warming does exist and is a problem. If anyone has a different opinion, okay that’s cool, but I don’t care to debate it right now.
Basically, what are some things we can do to curve the effects of Global Warming? What things will have a definate impact on the environment. I know recycling and turning off lights and driving hybrid cars will help, but is there anything else?
Should countries back the Kyoto Protocol for instance? Is there legislation that can be suggested? Any scientific breakthroughs that we should pour money into to save the enviornment? Hydro-cars? Any bright ideas?
Windmill Farms answers:
Global Warming is real. Understanding what causes global warming is the key to understanding our options. Basically humans have been releasing a number of different gasses in to the atmosphere in very very large quantities for about 100 years now. Those gases have changed the way the earth absorbs and reflects light from the sun. Those changes have resulted in the Earth absorbing slightly more sunlight than it used to and that extra energy is slowly heating up the Earth.
Here is the problem. The gasses we have already released into the atmosphere would be very difficult to take back out again and so we are basically stuck waiting for natural processes to remove those gases. That will take hundreds of years.
What we can do though is to keep it from getting worse. Today we are releasing more of these gases faster than ever so every day the problem gets worse because more and more greenhouse gases are building up in the atmosphere. To keep the problem from getting worse we need to stop releasing these gasses as quickly as possible.
Reducing greenhouse gas production is very hard because our way of life is based on using lots of energy. It is the production of energy is the main way we create the most important greenhouse gas, which is carbon dioxide. Every time we burn something, gasoline to drive someplace, natural gas to heat our houses, coal to generate electricity, we make more carbon dioxide. We need to learn how to generate our energy using methods that do not require burning fossil fuels.
There are many types of energy that do not require burning fossil fuels such as: wind power, hydroelectric power, solar power and nuclear power. One important complication is that all of these “clean” power sources are used to generate electricity. That is a problem for cars because cars currently do not run on electricity. That is one reason why people are working hard on electric cars, hybrid cars and fuel cell power cars.
There is one more “clean” energy source that does work with today’s cars and that is bio fuel. In that case we grow plants, which absorb carbon dioxide to grow, and then later turn the plant matter into bio diesel or ethanol, both of which can be burned in a regular engine. The carbon dioxide that burning releases is the same carbon dioxide captured by the plants when they grow so there is no addition of carbon dioxide to the atmosphere, which is why this is a clean fuel.
So basically there are a couple of things to understand about Global Warming.
1) We cannot make it go away no matter what we do because the gasses we have already released in the last 100 or so years will be in the atmosphere absorbing extra energy from the sun for hundreds of more years.
2) Global warming will get much worse if we keep pumping out greenhouse gases and it will last much longer. Greenhouse gases come from burning fossil fuels to generate our energy. Therefore we must change the way we generate energy as fast as possible.
Currwntly we rely on coal, oil and gas to supply most of our energy needs….?
Why must we develop alternative energy resources???????????
Windmill Farms answers:
1) The greenhouse effect – when the Sun’s heat strikes the Earth it is not all absorbed and some is reflected back. Burning fossil fuels (gas, oil and coal) releases carbon dioxide, which reflects the Sun’s heat back to Earth again. This is heating up our planet and melting the ice caps at the North and South Poles, increasing sea level, which puts low lying land at risk of flooding, threatens wildlife and causes desertification and forest fires.
2) The amount of gas and oil being extracted is no longer sufficient to keep up with demand, because we are running out. There is still plenty of coal to keep up with demand for hundreds of years, but this too will run out. Oil, gas and coal were formed from ancient vegetation which was compressed by the earth’s crust to form the fuel. It is being used up much faster than it is being created.
The next question is which energy sources do we use to make electricity?
Solar / Wind – good in places with a lot of sunshine / wind, but unreliable and difficult to store.
Hydroelectric – difficult to expand existing supply, without building dams which will have a big impact on the environment.
Nuclear – limited supply of Uranium – need a massive increase in capacity to take place of fossil fuels – no safe way of storing radioactive materials.
Tidal power could be used to some extent.
Geothermal power – pumping water down into the Earth and uses that heat to generate electricity – expensive.
Nuclear fusion – decades away from being developed reliably.
I think the problem is that the energy companies are in this to make a short-term profit and are not interested in the long-term problems of the environment. If government took over the energy supplies, then this could be planned to meet our energy needs with a combination of wind, solar, hydroelectric power, district heating schemes, etc. We need to switch away from both nuclear and fossil fuels as a source of energy.
If a small wind farm in Texas raises night temps by 1.3 degrees, what will 32,000 do to Britian’s climate?
The government is proposing to build up to 32,000 new wind turbines with many thousands more transmission pylons as it struggles to meet green targets.
A report by Chris Huhne’s Department of Energy and Climate Change says the huge expansion is essential if Britain is to meet its obligations to cut greenhouse gas emissions.
At present, there are about 3,000 onshore wind turbines with a few hundred offshore. They have helped cut carbon emissions but generate only 1-2% of the nation’s power.
Researchers at the State University of New York at Albany analysed the satellite data of areas around large wind farms in Texas, where four of the world’s largest farms are located, over the period 2003 to 2011.
The results, published in the journal Nature Climate Change, showed a warming trend of up to 0.72 degrees Celsius per decade in areas over the farms, compared with nearby regions without the farms.
“We attribute this warming primarily to wind farms,” the study said. The temperature change could be due to the effects of the energy expelled by farms and the movement and turbulence generated by turbine rotors, it said.
“These changes, if spatially large enough, may have noticeable impacts on local to regional weather and climate,” the authors said.
So are man’s attempt to solve a natural problem helping or making the situation worse? Britain is an island and 32,000 net new wind turbines could cause weather patterns to change.
Windmill Farms answers:
Its going to not only kill millions of birds; It’s going to drive people insanely crazy. The wind turbines emit a low frequency hum at about 500hz which can create a constant migraine headaches. If the numbers are right then it might also drive your pets mad… Bad situation and bad energy yields crazy behavior.
Good luck with the green energy… Because its deadly. The people will be demanding those wind turbines torn down or even blown up. Where is the good old fashion coal plant or the nuke plant…
Here are some disturbing facts:
Further, the evidence from qualified sleep researchers [5,8,9] shows “annoyance” of sleep disruption from any cause can result in delayed sleep onset, recalled awakening (for periods of >30 seconds), and perhaps most importantly, in repetitive non-recalled arousals (for periods of <30 seconds). These, sleep researchers state, can have adverse impacts of fatigue, decreased performance, increased accident rates, cardio-vascular impacts, and diabetes.
Can anyone give me all the examples of renewable energy resources?
i need examples of renewable energy resources for a science project. it is due in wed 3rd dec and i need the examples because i am writing a letter explaining what you could use instead of non-renewable energy resources and i need to write down all of them. please could you help peoples, 10 points if you do. and please can i not have any negative answers about looking it up, because it doesn’t give me the full works if you know what im saying.
Windmill Farms answers:
Solar Cell – Makes energy from the sun’s photons forcing electrons out of a cell’s silicon core.
Solar Panel – Uses the sun’s energy to heat water; the steam produced makes a turbine turn to generate electricity.
Wind Power – The power of the wind turns a turbine, which uses a generator to generate electricity.
Hydroelectric – The power of massive amounts of water being released in a place (usually a dam) creates huge amounts of electricity. Countries such as Norway are powered almost 100% by Hydroelectric power.
Geothermal – Pipes underground full of water are heated up by volcanic activity underneath the earth crust. The steam created again makes a turbine turn… And you know what happens after.
Biomass – burning specific sources such as wood or animal/human feces releases vast amounts of energy. – Note that burning feces releases methane, a greenhouse gas which contributes to global warming. Hence, identity as a renewable source of energy is debatable.
Tidal – The power of the waves generates electricity much like hydroelectric power.
Nuclear Power – Uranium atoms are split in a nuclear reactor in a reaction which is called nuclear fission. Countries such as France are powered almost entirely by this. It has no direct effect on the environment, however it produces large amounts of radioactive waste. Most people consider Nuclear power as being renewable, however it must be brought up that the supplies of Uranium and Plutonium will eventually run out.
All these sources of energy are renewable, as the source they come from will never finish. A lot of these also create hardly any waste and require few maintenance, hence they are plausible alternatives to the polluting manner of generating electricity mostly used today (namely coal powered power stations).
Why havnt we turned the Sahara desert into a massive solar power plant?
Yea guess its a next gen prob when we have cleaned the plant’s oil even though ‘Honda’ :/
The Zero-Emission Sedan of the Future. A Reality Today.
* Zero emissions
* Domestic fuel
* Helps slow increase in greenhouse gases
Wow all the “Civilized Nations” will stop driving to work !?1? :/ when the oil has gone *Shock*
Lets fcuk up the planet as much as we can before we die and let someone else “deal” were losing sh!t loads of natural water on the caps at record losses but nvm lets keep chopping down rain forests for sofas & lets hope we have another extinction event to knock “Humans” back on there asses so we can rise again to kill the planet
Windmill Farms answers:
One of the biggest factors is the price as someone else said. There is a large cost involved in even smaller solar panels for house holds so having a few hundred in the desert would be costly.. And we all know people (governments) don’t like spending money
On the up side there are a few solar farms in the USA which are ‘massive’ so that is a step in the right direction.
Really we need to make more of the wind as well, wind farms are effective are they are again, creating wind farms not just on land but also at sea.
Like anything, it’s going to take time but I think soon solar and wind energy will become apart of our lives soon.
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