GLOBALWARMINIG
WATERPOLLUTION
DEFORESTATION
ENERGYPROBLEM
AIRPOLLUTION
OZONELAYER
ACIDRAIN
WASTE
D
E
F
O
R
E
S
T
A
T
I
O
N
V
I
A
I
E
T
U
O
Q
N
U
I
R
I
G
O
S
O
P
M
E
Y
A
A
D
I
X
A
I
W
I
A
C
L
E
C
J
M
M
I
F
A
A
R
J
A
N
C
V
R
Z
E
I
E
U
R
J
R
E
S
G
T
I
B
P
W
D
O
Y
L
J
P
U
D
Q
R
I
E
M
F
O
O
E
Q
U
B
W
O
A
I
Y
A
I
R
R
W
I
A
I
F
E
O
L
L
A
C
E
R
A
P
A
I
W
R
I
U
Q
R
Z
L
U
A
U
J
V
O
W
J
O
Q
E
I
C
P
M
U
O
Z
O
O
O
L
L
F
U
Q
B
I
Y
Y
B
T
O
Z
O
N
E
L
A
Y
E
R
D
T
W
G
P
I
I
W
O
E
H
U
B
U
P
Q
O
L
B
R
J
O
A
A
X
Y
N
T
O
T
V
W
J
B
A
E
E
N
W
S
T
O
A
I
L
U
V
N
H
N
X
N
H
T
K
T
K
U
F
O
G
I
N
E
T
U
V
E
S
N
R
E
Y
U
V
N
P
P
W
E
B
