Learn About Biofuels!

A biofuel is any fuel derived from biological matter.  Here are some examples:

GASOLINE & PETROLEUM
The most commonly used biofuel today - made from biomass that died millions of years ago (think dinosaurs and ancient jungle growth!)  Also, the leading cause of global warming.  Hmmm...  What are some other options?

CORN
Yup, fuel made from corn!  Emissions are lower, but not by much.  Growing all that corn may also require more energy than it actually produces.

SUGAR CANE
A totally sweet fuel!  Fuels made from sugar cane crops can reduce greenhouse gas emissions by up to 56%!  A big success so far in Brazil.

SWITCHGRASS
This amazing plant turned biofuel can reduce greenhouse gas emissions by up to 90%!  Some kinds of switchgrass can also remove CO2 from the atmosphere and store it in the ground.

USED COOKING GREASE
The cooking oil used to deep fry things like french fries and chicken wings can be recycled into fuel!  Fuel made from used cooking grease releases fewer gases and is a great way to REUSE something that would have been thrown away.

KELP
Scientists have recently found that seaweed can be used for fuel as well.  Breaking down the sugars in kelp can create five times as much ethanol as corn.

WHAT DO YOU KNOW ABOUT BIOFUELS?

A “biofuel” is any fuel created from plant or animal materials.  For example, wood is one of the simplest biofuels.  Modern biofuels include bioethanol, made from sugar or starch crops.  Biodiesel on the other hand is made from vegetable oils or animal fats.

ADVANTAGES

·      Reduced greenhouse gas emissions.

·      More environmentally friendly.

·      Varied source material (can be made from a wide range of materials).

·      Cheaper.

·      May help to tackle poverty (poor countries without oil reserves may have land available for biofuel farming).

·      Biodegradability (spills are easier to clean up and MUCH less hazardous).

DISADVANTAGES

·      Lower Energy Output (great quantities consumed to get the same energy).

·      Adapting more land to produce crops for biofuels means more loss of habitats and decreased biodiversity.

·      Food vs. Fuel Debate (farmers make more money selling crops for fuel, which may cause higher food prices).

·      Not Carbon Neutral (it still takes energy to grow crops and then convert them into fuel).

·      Water Use (massive amounts of water are needed to grow crops and manufacture the fuel).

Here we go again!  Another energy source that has just as many bad sides as good sides.  But there may be hope in the future with 2^nd and 3^rd generation biofuels.  What do you know about these?  How are they different from 1^st generation biofuels?

STATE OF THE UNION ADDRESS

Two days ago, President Barack Obama made his first state of the union address.  Of course, I was excited to hear him talk about his plans for helping our country “go green!”

The President talked about creating “clean energy jobs” (cool!) and passing a “comprehensive energy and climate bill” (very cool!)  He then talked about the importance of “clean nuclear power plants,” “oil and gas development,” “advanced biofuels” and “clean coal technologies.”

What is all that stuff?  None of it sounds very green to me!  Mr. Obama didn’t talk about solar, wind or geothermal power—the cleanest known energy technologies of today!

For the next few days, I will try to research the energy sources he did mention and provide information about each of them!  First up—nuclear energy!