1. Recircling
By Group One

2. What is recircling energy?
Recircing energy is a energy source that is from waste material.
EX:waste heat utilization; ecological agriculture; marsh gas tank
Not including: fossil fuel; solar energy、wind energy source
A kind of Renewable energy

3. The advantages of recircling
Decreased air pollution and greenhouse gases from incineration
Reducing hazardous waste leaching from landfills
reduction in environmentally damaging mining and timber activity
recycling has reduced the American carbon emissions by a net 49 million metric tonnes in 2005
And also helps the U.K. reduce CO2 emissions by million tonnes a year.
(By The United States Environmental Protection Agency)

4. However……
Separate factories must be set up for the recycling of materials.
More pollution and energy consumption for transport, sorting, cleaning and storage
Pollutants produced by the recycling process itself
Most recycling is not cost-efficient
Creation of low-quality jobs.
Even cause crime

5. The history of recircling
-Recycling has been a common practice for most of human history.
The archaicest advocate: Plato
Bronze collected & melted down for reuse
‘Dustmen‘ in England
The encourages of Industrialization
Resource conservation programs established during the war were continued in some countries without an abundance of natural resources

6. What we have now Not very widespread Ecological agriculture
The core of morden ecological agriculture is the methane
Can produce a more effectively ecological cycle
But very expensive
Cogeneration: A technology to produce electricity through waste heat
Great ecological benefits
But few economic benefits
A 4500 kw cogeneration generator need 50 million RMB.
Not very widespread

7. Recycling for the future
Recycling is an important part of our future
Average person sends 4.4 pounds of garbage to the landfill every
Create a recycle bin
Most clean paper, plastic, metal, and glass are recyclable.
Keeping the world organized means keeping the world sustainable.