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Forests%20and%20Climate

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Forests and Climate Why plant a tree, or even better many trees? */(12) Forests and climate The athmosphere keeps the Earth warm Carbon circulates from one stock ... – PowerPoint PPT presentation

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Title: Forests%20and%20Climate


1
Forests and Climate
Why plant a tree, or even better many trees?
2
Forests and climate
  • The athmosphere keeps the Earth warm
  • Carbon circulates from one stock to another
  • Plants need CO2 and they bind it at the same time
  • How did this happen?
  • Forests are important lets increase the amount,
    manage and use them in a sustainable way
  • Multiple values of forests-what does a forest
    mean to you?
  • 7. What can we do?

3
Atmosphere keeps the Earth warm
ATMOSPHERE
EARTH
4
  • HUMAN

GLOBE
  • Requires a protective layer of CO2 and other
    gases around it to retain a sufficient
    temperature on the Earth

Needs food to get energy for his vital functions
If you eat more than you consume
If more CO2 stays in the atmosphere than to which
the current ecosystem is used to
First getting fatter, gradually negative effects
on health
First, the temperature on the Earth arises,
gradually the effects of the elevated temperature
starts to show
THE SITUATION GETS WORSE UNLESS SOMETHING CHANGES
SOLUTION less food, more exercise
SOLUTION less CO2 emissions, more CO2 binding
5
2. Carbon circulates from one stock to another
-wood and wood products act also as carbon stocks
6
3. Plants require CO2 and they bind it at the
same time
PHOTOSYNTHESIS
carbon dioxide CO2
light (energy)
water H2O
oxygen O2
sugars
carbon dioxide CO2
oxygen O2
energy
BURNING
7
4. How did this happen?
TIMELINE
BEFORE
NOW
THE GOAL
8
Source FAO 2005
No information
Changes in the volume of forests
(increase/decrease) annual average between years
1990-2000 and 2000-2005
Accelerating decrease
Continuous decrease
Decrease slowing down
No change
Increase slowing down
Continuous increase
Accelerating increase
9
5. FORESTS ARE IMPORTANT
FOREST 10
SEA 70
THE LAND AREA OF THE WORLD
OTHER 20
FOTOSYNTHESIS OF THE WORLD
FOREST 42
SEA 37
OTHER 21
10
6. Multiple values of forests-what does a forest
mean to you?
11
7. What can we do?
USE WOOD AS BIOENERGY
MANAGE AND PROTECT FORETS
USE WOOD IN CONSTRUCTION
PLANT NEW TREES!!!
RECYCLE WOOD PRODUCTS
DRIVE LESS
12
What can I do?
use public transport instead of using own car
ride a bike
have only a quick shower and avoid unnecessary
use of water
prefer local products
Save energy
change energy saving lamps
travel by other means than airplane
remember to turn off lights and electric devices
when you dont use them also stand-by mode!
eat less meat
and plant a tree.
13
THE ROLE OF FORESTS IN CONTROLLING CLIMATE CHANGE
  • Increasing and growing forests in a sustainable
    way and using them in multiple ways
  • Substitute non-renewable materials with wood
  • Recycling wood products
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