A Wasteful World - PowerPoint Presentation

Slide1

A Wasteful WorldSlide2

Types of Waste

Biodegradable/Non Biodegradable

Domestic/Industrial

Hazardous/Non-Hazardous

Solid/Liquid

Come up with an example of each if you canSlide3

HIC/MIC/LIC

HIC stands for Highly Industrialised Country e.g. USA

MIC stands for Mostly Industrialised Country e.g. India

LIC stands for Less Industrialised Country e.g. BangladeshSlide4

Who produces more waste?

HIC countries usually produce more waste as they have higher levels of disposable income and the constant need to have the latest and greatest gadgets

20% of the worlds population who live in HIC’s produce 86% of the consumption of the worlds products

Poorest 20% consume only 1.3% of the worlds products

Copy figure 1 pg 124 into your books to explain this moreSlide5

Look at the table on pg 124 (figure 2)

What is it showing us?

Look at the following countries information: USA, Australia, Kuwait, United Kingdom, Germany. What do you notice?

Look at the following countries information: Cameroon, Kenya, Ethiopia, Congo, Bangladesh. What do you notice?Slide6

What is the map showing us on pg 125?

How is it different to a normal map of the world?Slide7

The map is showing the amount of waste collected from homes, schools and businesses

How it is different to a normal map is that the more waste a country produces, the fatter that country seems on the map. Look at the size of the US for example

Look at the size of Africa on the map, what do you think this tells us about the amount of waste produced there?Slide8

What is the waste made up of?

Look at figure 4. It breaks down how domestic waste is created. Over a third of it is from packaging

This diagram has changed over time. 50 years ago the % of fires/ashes would have been much higher, why do you think this?

Nappies would not have been invented either, as babies would have had cloth nappies instead of disposable ones, so they would be reused

E-waste didn't exist really either, now it is a massive contributor to domestic waste due to the demand to have the latest and greatest gadgets even if we don't need them!Slide9

United Kingdom: What happens to the waste?

2003/04: 72% went into landfills (hole in ground), 9% incinerated (burned) 19% was recycled

By 2007 it was up to 31% recycled

This is good because it means less in landfills and being burnt, this means less greenhouse gases in the environmentSlide10

How is waste recycled at local level

Most councils or local authorities in the UK and other countries have set up recycling centres.

These centres are specifically set up to deal with certain types of recycling e.g. cans, glass, paper

Usually the recycling is put into specific bins by the public and put out to be collected on certain days (see the pictures pg 126)Slide11

How is the recycled material used?

Look at the 4 orange boxes on page 127

Read through each box carefully. You then need to write what you consider to be the 4 most important pieces of information for each box in your book. We will then share these as a class and come up with what we consider to be the most important points

Don't just pick the first 4 points either as I could assess you on this in tests and/or the exam!Slide12

HIC’s...How do they get rid of the rubbish?

Many different types of waste

e.g

municipal waste, nuclear waste, other types of toxic wasteSlide13

Municipal Waste

Germany known as recycling capital of Europe, produces 14 million tonnes of municipal waste each year of which 60% is recycled

Quarter of a million people employed in waste management industry

1970’s 50,000 landfills in Germany, now only 160 and waste has to be treated

They also incinerate rubbish

People who run these plants are exempt from carbon emission rules which creates problems (see pg 128)Slide14

They also send rubbish to other countries and other countries also send their rubbish to be disposed of by Germany, its a big business!

But there are problems with the recycling system, copy the 4 bullet points from pg 129 that explain these problemsSlide15

Nuclear Waste

Doesnt

have any sites to reprocess or treat this kind of waste, so it has to be sent overseas

Doing this is very expensive for Germany to places like France, UK and Siberia

Hopefully they will eventually be able to deal with all their nuclear waste. They are hoping to be able to do this within the next few yearsSlide16

Other toxic waste products

Most of this type of waste is sent overseas

Alot

of it was sent to Eastern Europe

One famous example of this going wrong involved shipping toxic waste to Albania

The waste was labelled as aid for use in farming

But it had dangerous pesticides in it like

toxaphene

If you put a litre of

toxaphene

into water it can contaminate 2 million cubic litres of water

There was 6000 litres of it in the 480 tonnes. It would cost $5500 a tonne to get rid of the

pesitcides

This caused many problemsSlide17

Questions

Answer the Foundation questions and then the Higher questions from pg 130. You need to show me these questions next week (Sunday for girls, Tuesday for boys) for your second homeworkSlide18

Test: How and what to study, up to you if you follow these tips!

Pgs 124-130

Types of Waste and its production/Recycling and disposal of waste

Look at the notes we have made in class

Look at the headings in the blue boxes on each page

Make sure you understand in particular the diagrams/tables and what they are showing

Look at the learning outcomes/objectives of the two sections

The review boxes on pg 125 and 130 explain what you should know

Orange boxes pg 127-know this!-you should already if you did

you homework!Slide19

Sources and Uses of Energy

Look over the table on pgs 131-132. You

dont

need to know everything on it, just be able to refer back to maybe 1 or 2 examples of types of fuel if asked to do so in an assessmentSlide20

Ground Source Heating

Can save you 70%

Does not give off greenhouse gases

Cheap in the long term as infinite resource (never run out), but its expensive to build in first place

Need space to build it

It works by taking heat from the ground into pipes filled with chemicals and water that are then heatedSlide21

Power from the Sun

Two options- photovoltaic cells and solar panels

PC- expensive to install, but is fitted onto buildings. Also not nice to look at

They are panels/tiles which produce energy from light

SP- can provide you with most of your hot water, no ongoing costs, fitted to building, but not good in places with not much sun

Fluid in the panels heat up producing hot waterSlide22

Wind Power

Turbines are used to produce energy

They are quiet and efficient,

dont

give off any emissions

Needs to have a certain wind speed to work, not nice to look at and can affect local wildlife patternsSlide23

Power from water

Controlling water to power turbines, can be done with rivers or tidal water

Cheap to run as water is infinite resource

Expensive to build

Can affect the environment in different waysSlide24

Management of energy usage and waste

Energy usage has doubled every 20 years

But we waste most of the energy through a number of ways

Copy the red bullet points from pg 135

The wasted energy could supply 66,000 homes

Energy wastage continues to rise because we are building bigger homes and these need more energy

Heating and cooling systems and dishwashers use the most energySlide25

How do we waste energy in school and at home?

Think about how we use energy here at school and at home. We are all guilty of wasting energy

e.g

lights being left on when no one in a room,

tv

left on standby, phone chargers plugged in with no phone charging

Your task is to make up a list of areas at home and at school where energy is being wasted. You then need to come up with a viable solution to the problem. Some will be more complicated than others. You need to do this as it will be part of your next assessment