The world’s most valuable metal, aluminum, is in the spotlight after China announced it will begin importing coal.
Aluminum mining is already popular in some parts of the world, but it is particularly sensitive to climate change, and it is also a major source of carbon dioxide.
Coal is cheaper, but the price of the metal has risen dramatically.
The International Energy Agency said the price increase will likely make it more difficult to produce coal in the future.
What to know about the climate and pollution impacts of the coal industry in the U.S.
A group of scientists have released a study, “Coal: The Price of Cheap Coal and the Environment,” in which they look at the environmental impacts of coal mining in the United States and examine how much the metal can cost the environment.
Here are the key findings:Coal is the most expensive commodity in the world to produce.
A kilogram of aluminum costs $2.50 in the US.
That means that the environmental impact of a kilogram is a whopping $4,200, the researchers say.
Aluminum, which is found in some types of steel and in some plastics, accounts for about a third of the carbon emissions in the energy sector.
In the United Kingdom, a kilo of aluminum is about $1.30.
Aluminum is also the most valuable mineral in the earth’s crust, which makes it very difficult to extract from.
There are no proven methods for extracting the metal from the earth.
The metal, when crushed and oxidized, produces a very fine powder.
The researchers estimate that there are more than 9 billion pounds of the stuff on Earth.
The world is producing about 1.3 billion tons of aluminum every year.
The price of aluminum in China has been increasing by as much as 5,000 percent in the last decade.
The price of steel has been going up by nearly 1,000%.
Coal is more expensive, but its environmental impact is still relatively small.
The average American consumes about 40 pounds of aluminum annually.
A pound of steel, for instance, is about 20 times more expensive than aluminum.
And that’s before you factor in the costs of coal.
A typical American household produces more than 7,500 tons of steel annually, which equates to about 7.5 million pounds of steel.
The amount of steel in the Earths crust is roughly 13,000 metric tons.
Aluminum and coal are not the only pollutants to be affected by the increased demand for the metal.
Carbon dioxide, which forms when the iron in the soil reacts with sunlight, is also emitted by the mining process.