TY  - BOOK
AU  - Walker,C.H.
TI  - Our changing atmosphere
T2  - Science understandings. The environment
SN  - 090892402X
U1  - 428.6 
PY  - 1992///]
CY  - Wellington, N.Z.
PB  - Lands End Publishing
KW  - Air
KW  - Pollution
KW  - Juvenile literature
KW  - Greenhouse effect, Atmospheric
KW  - Ozone layer depletion
KW  - Global warming
KW  - Nature
KW  - Effect of human beings on
N1  - Includes index; For 10-12 year olds -- Education Services, Wellington, N.Z
N2  - Looks at the causes and implications of ozone depletion, the greenhouse effect and global warming. Examines more closely human responsibility for changes in the atmosphere and action that can be taken to help the situation. Suggested level: primary, intermediate
ER  -