How do they come and meet us?

What will happen after they meet us?

Who are they?

THEY=NATURAL RESOURCES

What approaches do we make to meet coals?

We need coal for the production of electricity and heat in our daily life. What's more, coal is also used for industrial purposes, such as refining metals.

Two methods: surface or ‘opencast’ mining or underground or ‘deep’ mining help us to get these black rocks. And the choice of the methods mostly rely on the geology of the coal deposit.

Then what about oil?

There are 2 types of drilling: land drilling and ocean drilling to get oil.

Fracking

Fracking is shorthand for hydraulic fracturing, a type of drilling that has been used commercially for 65 years. In other words, it is the procedure of creating fractures in rocks and rock formations by injecting fluid into cracks to force them further open.

Fracking may cause a series of environmental problems. Air pollution, exposure to toxic chemicals, waste disposal and so on.

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