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Los combustibles f siles calefaccionan nuestros hogares. Impulsan a autom viles, camiones y aviones. Pero cada vez que se usan estos combustibles, aumentan las temperaturas de la Tierra. Adem s, no son renovables, es decir que alg n d a se agotar n.

Desde el siglo XIX,... Read Full Overview

Fossil fuels heat our homes. They power cars, trucks, and planes. But every use of these fuels adds to rising temperatures on Earth. And they are nonrenewable. Someday, they will run out.

Since the 1800s, people have studied the effects of burning fossil fuels. This... Read Full Overview

Fossil fuels heat our homes. They power cars, trucks, and planes. But every use of these fuels adds to rising temperatures on Earth. And they are nonrenewable. Someday, they will run out.

Since the 1800s, people have studied the effects of burning fossil fuels. This... Read Full Overview

Los combustibles f siles calefaccionan nuestros hogares. Impulsan a autom viles, camiones y aviones. Pero cada vez que se usan estos combustibles, aumentan las temperaturas de la Tierra. Adem s, no son renovables, es decir que alg n d a se agotar n.

Desde el siglo XIX,... Read Full Overview