+ Man-made reasons (emissions, change in 4
etc...)
» COz and other greenhouse gases
+ Reduced ice caps, sea temperatures,
release of greenhouse gases
u
C02 Emissions - latest stats
+ Between 1990 - 2009.... 20% higher
» Increase of 35% between 1995-2005
» Decrease of 9% 2008-2009
+ Carbon footprint increased by 12%
over period
CO2 Emissions
e Agriculture
» Fluorinated gases (CFC's, HFC’s)
e Waste industry
» Transport
» Industry
e Household
Impacts of Environmental
A change
S e Major Impacts:
> Global warming
| > Sea level rise
> Ocean acidification
> Health
> Temperature rise
> Extreme weather even
> Deforestation
> Ecosystem strain
> Loss of biodiversity
Global Warming
+ The main cause of global warming is the
emission of ‘greenhouse gases’ such as
carbon dioxide, methane and nitrous oxide.
e Human activity over the past 250 years,
including the burning of fossil fuels, change
of land use and agriculture, has increased
the concentration of greenhouse gases in
the earth's atmosphere.
» As these gases build up in the atmosphere
they strengthen what is known as the
‘greenhouse effect’.
Global Warming
\ » There has been a clear decreasing trend in Arctic
Nos summer sea ice levels since records began in
1979.
+ Sea level around the Uk rose by 10cm during the
20 century.
» The Earth’s surface has warmed by 0.4 C on
average since the 1970s, 1 C in last 100 years.
» In 160 years of records the hottest years have
been since 1997.
Group Exercises
Identify the following;
e Commonly used resources
+ How resource efficiency affects climate
change
e Reasons why a business should be
resource efficient
GROUP TASK 3
Commonly used resources
» Non-renewable
+ Cannot be grown,
replenished in the same
.
Metals
A few facts
e We throw away more than 7 million tonnes of
food and drink every year from our homes -
most of which could have been safely
consumed.
» By pursuing opportunities for re-use, the UK
could reduce its reliance on raw materials,
including rare earths, by as much as 20% by
2020
e Our research shows doubling the number of
sofas re-used, could save 52,000 tonnes of
CO2 equivalent. At the moment, 83% of
sofas are not re-used and are sent to landfill
or recycled.
+ Tip of the icebera......
Links between resource
efficiency and climate change
Emissions of greenhouse gases
from manufacturing, agriculture,
transport, forestry, aviation,
shipping
Embodied energy
> Total sum of energy to produce
Emissions from
waste
° transport
> energy use
Transfer of greenhouse gases
from one part of a cycle to
another e.g. hybrid cars reduce
fuel consumption but use
inefficient coal fired power
stations to charge batteries
Business Reasons for Resource
Efficiency
Ny + Regulation and
legislation
» Reputation
e Cost reduction
e Staff retention
e Profitability
» Development of
industrial capability
» Standard of living in
less developed
countries
es
Reduce, Reuse, Recycle’ 00)
In order to minimise the impact of
waste products on the environment
there are actions that we can take by
reducing what we use, reusing
products and recycling waste.
In groups complete the 'waste
hierarchy' activity and then feedback
your answers to the other groups
Waste Hierarchy Activity
The Waste Hierarchy
Preferred Environmental Option
Energy Recovery
Disposal
Least preferred Environmental Option
Group Exercises
Identify the following;
e Ways to reduce consumption of
commonly used resources
e Ways to reuse commonly used
resources
Identify recyclable resources
GROUP TASK 4
Waste Types
e Hazardous
* Waste which may contain hazardous substances,
may cause harm to the environment or react with
other materials
+ Sharps, infected material, some hospital waste,
waste from surgeries hospitals and clinics,
infectious organisms, absorbent materials, human
and animal tissue
° Inert and Active
+ Building waste such as rubble, bricks, stone (Inert)
and wood, old window frames, guttering, pipework,
downspouts and other building related matter
(Active)
Waste Classification Activity
o Task 1... Split cards into:
* Recyclable/reusable
+ Non-recyclable
+ Compostable
+ Energy recovery
» Task 2 ... the non-recyclable cards
split
* Biological/Clinical
+ Non-hazardous
+ Hazardous
* Inert/inactive
_ Ways to reduce...
: Boil only water you need
+ Buy only what you need
» Buy things with less packaging
» Cook food for only those eating
» Switch off lights, monitors, appliances
e Print on both sides of paper
» Flush toilet only when needed
» Solar power
+ Insulation in homes
» Service vehicles and equip regularly
e Use public transport
» Walk...
_ Ways to reuse...
New ways of using materials
= | Reuse wrapping, boxes, plastic
bags
» ‘Bag for life’
« Repair rather than dispose
« Composting (paper, wood, food)
+ Chip fat from local chip shop used
as diesel
+ Sell unwanted items
+ Re-use coffee cups
+ Print on both sides
e Rechargeable batteries
» Grey water harvesting
e Rain water harvesting
Recyclable Resources
» Plastics
» Tins, aluminium, steel
» Paper
» Glass
» Cardboard
» Tetrapak
» Clothing
» Electronic equipment
+ Mobile phones
» Spectacles
» Tyres
+ Ink cartridges
» Some building materials
Recycling materials into.....
Paper
» More paper, depending on quality — 7 times
Cardboard
. Papel jiffy bags, loft insulation, car bodies, packaging, animal bedding,
cofins
Cans
» New cans, car and aviation , bike frames, train tracks, pipes. Never loses
quality
Plastics
+ new bottles, car parts, bins, home composters . It can also be used to make
clothing such as fleece jackets and hats or fibre filling for sleeping bags and
duvets. Plastic milk bottles are used in street and garden furniture
Glass
» Reused where possible (brown, clear) or crushed and turned into fine sand to
be used as building sand, if processed further can be used as floor and wall
insulation and lightweight construction aggregate.
Tyres
Surfaces for playgrounds, shock absorption, car parts, retreads, fuel, mulch
for landscaping, 3G sports pitches
Cri
Complete your Workbook
Now that you have completed your
activities write the answers in your
work book.
PACA
Practice Questions
Complete the crossword and the
practice questions on your own.
We will then go through the answers as
a group to see how you all did.