Recent Changes

http://en.wikipedia.org/wiki/Nuclear_power
http://www.howstuffworks.com/nuclear-power.htm
Australia is the second largest supplier of Uranium ore after Canada, yet it doesn't have a single nuclear power station.
1kg of U ore = 100kg of coal. Uranium also emmits far less green house gases and Co2 then coal.
The bad thing is that there needs to be a safe place to get rid of the nuclear waste, and also that the plants run on electricity.

What are the advantages?
There are many advantages like quicker, cheaper bigger crop ect

Political alignment and global warming
copy paste henry ?

How much of this is natural and how much is caused by human activity?
There has always been variations in the earths climate and temperature over the centuries. There have always been some years that were warmer than normal and some years that were colder than normal.
However, one would be stupid to deny the facts of global warming. And that facts indicate that the earths temperature is increasing-faster than normal! Over the last 100 years, the earths average surface temperature has risen about 1 degree Celcius, with about two thirds of the increase occuring over the last three decades. This is definetely out of the ordinary and scientists are 90% certain that the rise in global temperature can be attributed to human activities such as deforestation and the burning of fossil fuels.

Global Warming (greenhouse effect)
The temperature rising could have dramatic effects on our lives and ecosystems around the world. Even small increases in temperature could make living conditions uncomfortable for various animals, causing them to move elsewhere possibly disrupting the food chains.

A particular problem is organ trafficking.[3[[http://en.wikipedia.org/wiki/Organ_transplantation#cite_note-2|]]] Some organs, such as the brain, cannot be transplanted.
http://en.wikipedia.org/wiki/Organ_transplantation
In many cases, patients with severe organ failure reach the point where they need to consider organ transplant surgery. An organ transplant is a life-saving procedure, but receiving a new organ is a process, and it can be complicated. Once your physician has made the diagnosis of organ failure, he will need to refer you to an organ transplant center, a medical facility that performs the type of transplant that you require. Transplant centers vary in what types of organ transplants they perform, so the closest center may not be the center to which you are referred.
http://surgery.about.com/od/proceduresaz/a/OrganTransplant.htm

Global Warming
Greenhouse gases are the causes of global warming, massive building facilities, big machinery and most housing facilities are major factors in this, These things cause carbon pollution which also causes are ozone layer to deplete and break which contributes to the factor of our weather changing.

Genetically modified foods (GM foods or GMO foods) are foods derived from genetically modified organisms, (GMOs). Genetically modified organisms have had specific changes introduced into their DNA by genetic engineering techniques. These techniques are much more precise[1[[http://en.wikipedia.org/wiki/Genetically_modified_food#cite_note-0|]]] than mutagenesis(mutation breeding) where an organism is exposed to radiation or chemicals to create a non-specific but stable change. Other techniques by which humans modify food organisms include selective breeding; plant breeding, and animal breeding,
http://en.wikipedia.org/wiki/Genetically_modified_food
(Sourced from SF4)
Using gene technology to improve an organism Genetic engineering and gene technology to manipulate DNA to change the genes within an organism.
Why change genes?
Gene technology allows scientists to isolate a specific gene, alter it, copy it and then reinsert it into a new
position. This could be back into the original organism or in a completely different one.
Gene technology has led to:
• larger harvests
• plants with greater disease resistance
• crops with improved storage and
handling properties
• fruit and vegetables that last longer and
taste better.
Organisms that have their gene sequence altered are called genetically modified (GM) plants or animals.Genetically modified cotton, for example, has a gene from a naturally occurring bacterium, Bacillus thuringiensis (Bt) inserted into it. This insertion produces a protein that kills the major pest of cotton (the Heliothis caterpillar) when it eats the cotton leaves. The modified cotton is called Bt cotton. Australians currently use a number of products from genetically modified crops in their foods. These include canola oil, soy beans in some soy-based products and potatoes in processed snack foods.
In the future, genetic modification may have other benefits such as:
• producing plants that can reverse the effects of salinity
• creating bio-fuel bacteria that can produce energy
• producing bacteria that can clean up oil spills and process industrial waste
• allowing genetic diseases to be eliminated.
How gene technology works
Genetic engineering and gene technology alter
particular characteristics of an organism by manipulating
its genes. To do this, the long strand of the DNA
molecule needs to be cut and rejoined.

Global Warming
To my knowledge, there has been a hole detected above antartica. because of what Squid_salad eplained. these stranded green house gasses have cased this hole.