<PAGE>
000 A000000 12/31/95
000 C000000 0000877232
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 A
001 A000000 GREEN CENTURY FUNDS
001 B000000 811-06351
001 C000000 6174820800
002 A000000 29 TEMPLE PLACE
002 B000000 BOSTON
002 C000000 MA
002 D010000 02111
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 2
007 C010100 1
007 C020100 MONEY MARKET FUND
007 C030100 Y
007 C010200 2
007 C020200 BALANCED FUND
007 C030200 N
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
010 A00AA01 GREEN CENTURY CAPITAL MANAGEMENT, INC.
010 B00AA01 801-39630
010 C01AA01 BOSTON
010 C02AA01 MA
010 C03AA01 02111
010 A00AA02 SIGNATURE BROKER-DEALER SERVICES, INC.
010 B00AA02 8-41134
010 C01AA02 BOSTON
010 C02AA02 MA
010 C03AA02 02116
011 A00AA01 SIGNATURE BROKER-DEALER SERVICES, INC.
011 B00AA01 8-41134
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02116
<PAGE>
018 00AA00 Y
019 A00AA00 Y
019 B00AA00 2
019 C00AA00 GREENCENTU
020 A000001 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
020 B000001 13-5674085
020 C000001 2
020 A000002 GOLDMAN SACHS
020 B000002 13-5108880
020 C000002 2
020 A000003 OPPENHEIMER
020 B000003 13-2798343
020 C000003 1
020 A000004 FIRST BOSTON
020 C000004 1
020 A000005 EDWARDS (AG) & SONS INC.
020 C000005 1
020 A000006 BIOSCIENCE SECURITIES
020 C000006 1
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 9
022 A000001 SALOMON BROTHERS
022 B000001 13-3082694
022 C000001 33089
022 D000001 0
022 A000002 LEHMAN BROTHERS
022 B000002 13-2518466
022 C000002 3754
022 D000002 175
022 A000003 GOLDMAN SACHS & CO.
022 B000003 13-5108880
022 C000003 3139
022 D000003 340
022 A000004 J.P. MORGAN SECURITIES INC.
022 B000004 13-3224016
022 C000004 1996
022 D000004 0
022 A000005 DILLON READ & CO INC.
022 B000005 13-1939216
022 C000005 696
022 D000005 664
022 A000006 FIRST CHICAGO CORP.
022 B000006 36-3595942
022 C000006 299
022 D000006 803
022 A000007 PAINEWEBBER
022 B000007 13-2638166
022 C000007 529
<PAGE>
022 D000007 0
022 A000008 MERRILL LYNCH PIERCE FENNER & SMITH
022 B000008 13-5674085
022 C000008 216
022 D000008 125
022 A000009 ASSOCIATES CORP. OF AMERICA
022 C000009 158
022 D000009 159
022 A000010 FIRST ALBANY
022 C000010 312
022 D000010 0
023 C000000 46109
023 D000000 2733
024 00AA00 N
025 D00AA01 0
025 D00AA02 0
025 D00AA03 0
025 D00AA04 0
025 D00AA05 0
025 D00AA06 0
025 D00AA07 0
025 D00AA08 0
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
029 00AA00 N
030 A00AA00 0
030 B00AA00 0.00
030 C00AA00 0.00
031 A00AA00 0
031 B00AA00 0
032 00AA00 0
033 00AA00 0
034 00AA00 N
035 00AA00 0
036 B00AA00 0
037 00AA00 N
038 00AA00 0
039 00AA00 N
040 00AA00 Y
041 00AA00 Y
049 00AA00 N
050 00AA00 N
051 00AA00 N
<PAGE>
052 00AA00 N
053 A00AA00 Y
053 B00AA00 Y
053 C00AA00 N
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 Y
054 D00AA00 Y
054 E00AA00 N
054 F00AA00 Y
054 G00AA00 Y
054 H00AA00 Y
054 I00AA00 N
054 J00AA00 Y
054 K00AA00 Y
054 L00AA00 Y
054 M00AA00 Y
054 N00AA00 Y
054 O00AA00 Y
055 A00AA00 N
055 B00AA00 N
056 00AA00 Y
057 00AA00 N
058 A00AA00 N
059 00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061 00AA00 100
077 A000000 N
078 000000 N
080 A00AA00 CHUBB GROUP OF INSURANCE COMPANIES
080 C00AA00 275
081 A00AA00 Y
081 B00AA00 2
082 A00AA00 Y
082 B00AA00 10
083 A00AA00 N
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 N
086 A010000 0
086 A020000 0
086 B010000 0
086 B020000 0
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
<PAGE>
086 E020000 0
086 F010000 0
086 F020000 0
008 A000101 GREEN CENTURY CAPITAL MANAGEMENT, INC.
008 B000101 A
008 C000101 801-39630
008 D010101 BOSTON
008 D020101 MA
008 D030101 02111
008 A000102 SCUDDER, STEVENS & CLARK
008 B000102 S
008 C000102 801-252
008 D010102 BOSTON
008 D020102 MA
008 D030102 02110
012 A000101 FUND/PLAN SERVICES, INC.
012 B000101 84-932
012 C010101 CONSHOHOCKEN
012 C020101 PA
012 C030101 19428
012 C040101 0874
013 A000101 TAIT, WELLER & BAKER
013 B010101 PHILADELPHIA
013 B020101 PA
013 B030101 19102
015 A000101 BANK OF NEW YORK
015 B000101 C
015 C010101 NEW YORK
015 C020101 NY
015 C030101 10286
015 E010101 X
028 A010100 110
028 A020100 0
028 A030100 0
028 A040100 83
028 B010100 4
028 B020100 15
028 B030100 0
028 B040100 439
028 C010100 0
028 C020100 13
028 C030100 0
028 C040100 3011
028 D010100 0
028 D020100 0
028 D030100 0
028 D040100 0
028 E010100 0
028 E020100 0
028 E030100 0
028 E040100 0
<PAGE>
028 F010100 0
028 F020100 0
028 F030100 0
028 F040100 0
028 G010100 114
028 G020100 28
028 G030100 0
028 G040100 3533
028 H000100 0
042 A000100 0
042 B000100 0
042 C000100 0
042 D000100 0
042 E000100 0
042 F000100 0
042 G000100 0
042 H000100 0
043 000100 0
044 000100 0
045 000100 Y
046 000100 N
047 000100 Y
048 000100 0.350
048 A010100 0
048 A020100 0.000
048 B010100 0
048 B020100 0.000
048 C010100 0
048 C020100 0.000
048 D010100 0
048 D020100 0.000
048 E010100 0
048 E020100 0.000
048 F010100 0
048 F020100 0.000
048 G010100 0
048 G020100 0.000
048 H010100 0
048 H020100 0.000
048 I010100 0
048 I020100 0.000
048 J010100 0
048 J020100 0.000
048 K010100 0
048 K020100 0.000
062 A000100 Y
062 B000100 0.0
062 C000100 0.0
062 D000100 0.0
062 E000100 0.0
062 F000100 0.0
<PAGE>
062 G000100 0.0
062 H000100 0.0
062 I000100 0.0
062 J000100 0.0
062 K000100 0.0
062 L000100 0.0
062 M000100 0.0
062 N000100 0.0
062 O000100 0.0
062 P000100 0.0
062 Q000100 0.0
062 R000100 0.0
063 A000100 0
063 B000100 0.0
064 A000100 N
064 B000100 N
066 A000100 N
067 000100 N
068 A000100 N
068 B000100 N
069 000100 N
070 A010100 N
070 A020100 N
070 B010100 N
070 B020100 N
070 C010100 N
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 N
070 E020100 N
070 F010100 N
070 F020100 N
070 G010100 N
070 G020100 N
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 N
070 J020100 N
070 K010100 N
070 K020100 N
070 L010100 N
070 L020100 N
070 M010100 N
070 M020100 N
070 N010100 N
070 N020100 N
070 O010100 N
070 O020100 N
<PAGE>
070 P010100 N
070 P020100 N
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100 0
071 B000100 0
071 C000100 0
071 D000100 0
072 A000100 3
072 B000100 35
072 C000100 0
072 D000100 0
072 E000100 0
072 F000100 2
072 G000100 1
072 H000100 0
072 I000100 0
072 J000100 0
072 K000100 0
072 L000100 0
072 M000100 0
072 N000100 0
072 O000100 0
072 P000100 0
072 Q000100 0
072 R000100 0
072 S000100 0
072 T000100 0
072 U000100 0
072 V000100 0
072 W000100 0
072 X000100 3
072 Y000100 0
072 Z000100 32
072AA000100 0
072BB000100 0
072CC010100 0
072CC020100 0
072DD010100 32
072DD020100 0
072EE000100 0
073 A010100 0.0530
073 A020100 0.0000
073 B000100 0.0000
073 C000100 0.0000
074 A000100 0
074 B000100 0
074 C000100 0
074 D000100 0
<PAGE>
074 E000100 0
074 F000100 0
074 G000100 0
074 H000100 0
074 I000100 0
074 J000100 0
074 K000100 0
074 L000100 0
074 M000100 0
074 N000100 0
074 O000100 0
074 P000100 0
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 0
074 R040100 0
074 S000100 0
074 T000100 0
074 U010100 0
074 U020100 0
074 V010100 0.00
074 V020100 0.00
074 W000100 0.0000
074 X000100 0
074 Y000100 0
075 A000100 3283
075 B000100 0
076 000100 0.00
008 A000201 GREEN CENTURY CAPITAL MANAGEMENT, INC.
008 B000201 A
008 C000201 801-39630
008 D010201 BOSTON
008 D020201 MA
008 D030201 02111
008 A000202 WINSLOW MANAGEMENT COMPANY
008 B000202 S
008 C000202 801-159300
008 D010202 BOSTON
008 D020202 MA
008 D030202 02110
012 A000201 INVESTORS BANK & TRUST COMPANY
012 B000201 84-0000000
012 C010201 BOSTON
012 C020201 MA
012 C030201 02110
013 A000201 KPMG PEAT MARWICK LLP
013 B010201 BOSTON
013 B020201 MA
013 B030201 02110
015 A000201 INVESTORS BANK & TRUST COMPANY
<PAGE>
015 B000201 C
015 C010201 BOSTON
015 C020201 MA
015 C030201 02111
015 E010201 X
028 A010200 3322
028 A020200 0
028 A030200 0
028 A040200 44
028 B010200 171
028 B020200 0
028 B030200 0
028 B040200 66
028 C010200 93
028 C020200 0
028 C030200 0
028 C040200 155
028 D010200 74
028 D020200 0
028 D030200 0
028 D040200 41
028 E010200 62
028 E020200 0
028 E030200 0
028 E040200 37
028 F010200 39
028 F020200 44
028 F030200 0
028 F040200 49
028 G010200 3761
028 G020200 44
028 G030200 0
028 G040200 392
028 H000200 0
042 A000200 100
042 B000200 0
042 C000200 0
042 D000200 0
042 E000200 0
042 F000200 0
042 G000200 0
042 H000200 0
043 000200 8
044 000200 8
045 000200 Y
046 000200 N
047 000200 Y
048 000200 0.750
048 A010200 0
048 A020200 0.000
048 B010200 0
<PAGE>
048 B020200 0.000
048 C010200 0
048 C020200 0.000
048 D010200 0
048 D020200 0.000
048 E010200 0
048 E020200 0.000
048 F010200 0
048 F020200 0.000
048 G010200 0
048 G020200 0.000
048 H010200 0
048 H020200 0.000
048 I010200 0
048 I020200 0.000
048 J010200 0
048 J020200 0.000
048 K010200 0
048 K020200 0.000
062 A000200 N
062 B000200 0.0
062 C000200 0.0
062 D000200 0.0
062 E000200 0.0
062 F000200 0.0
062 G000200 0.0
062 H000200 0.0
062 I000200 0.0
062 J000200 0.0
062 K000200 0.0
062 L000200 0.0
062 M000200 0.0
062 N000200 0.0
062 O000200 0.0
062 P000200 0.0
062 Q000200 0.0
062 R000200 0.0
063 A000200 0
063 B000200 0.0
066 A000200 Y
066 B000200 N
066 C000200 N
066 D000200 N
066 E000200 Y
066 F000200 N
066 G000200 N
067 000200 Y
068 A000200 N
068 B000200 N
069 000200 N
070 A010200 Y
<PAGE>
070 A020200 Y
070 B010200 Y
070 B020200 Y
070 C010200 Y
070 C020200 N
070 D010200 Y
070 D020200 N
070 E010200 Y
070 E020200 N
070 F010200 Y
070 F020200 N
070 G010200 Y
070 G020200 N
070 H010200 Y
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 Y
070 J020200 N
070 K010200 N
070 K020200 N
070 L010200 Y
070 L020200 Y
070 M010200 Y
070 M020200 N
070 N010200 Y
070 N020200 N
070 O010200 N
070 O020200 N
070 P010200 N
070 P020200 N
070 Q010200 N
070 Q020200 N
070 R010200 N
070 R020200 N
071 A000200 7166
071 B000200 3726
071 C000200 5323
071 D000200 70
072 A000200 6
072 B000200 101
072 C000200 15
072 D000200 0
072 E000200 0
072 F000200 23
072 G000200 47
072 H000200 0
072 I000200 0
072 J000200 0
072 K000200 0
072 L000200 0
<PAGE>
072 M000200 0
072 N000200 0
072 O000200 0
072 P000200 0
072 Q000200 0
072 R000200 0
072 S000200 0
072 T000200 8
072 U000200 0
072 V000200 0
072 W000200 0
072 X000200 78
072 Y000200 0
072 Z000200 38
072AA000200 194
072BB000200 0
072CC010200 11
072CC020200 0
072DD010200 51
072DD020200 0
072EE000200 0
073 A010200 0.0850
073 A020200 0.0000
073 B000200 0.0000
073 C000200 0.0000
074 A000200 0
074 B000200 97
074 C000200 369
074 D000200 1930
074 E000200 0
074 F000200 4245
074 G000200 0
074 H000200 0
074 I000200 0
074 J000200 211
074 K000200 0
074 L000200 65
074 M000200 0
074 N000200 6917
074 O000200 0
074 P000200 15
074 Q000200 0
074 R010200 0
074 R020200 0
074 R030200 0
074 R040200 6
074 S000200 0
074 T000200 6896
074 U010200 601
074 U020200 0
074 V010200 11.47
<PAGE>
074 V020200 0.00
074 W000200 0.0000
074 X000200 581
074 Y000200 0
075 A000200 0
075 B000200 6202
076 000200 0.00
SIGNATURE BRIAN J. HALL
TITLE ASSISTANT MANAGER
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the December
31, 1995 Green Century Funds Semi-Annual Report and is qualified in its entirety
by reference to such Semi-Annual Report.
</LEGEND>
<CIK> 0000877232
<NAME> GREEN CENTURY FUNDS
<SERIES>
<NUMBER> 1
<NAME> MONEY MARKET FUND
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-START> JUL-1-1995
<PERIOD-END> SEP-8-1995
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 0
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 0
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 0
<TOTAL-LIABILITIES> 0
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 0
<SHARES-COMMON-STOCK> 0
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 0
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 35,482
<OTHER-INCOME> 0
<EXPENSES-NET> 3,104
<NET-INVESTMENT-INCOME> 32,378
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 32,378
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (32,378)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 114,368
<NUMBER-OF-SHARES-REDEEMED> 143,083
<SHARES-REINVESTED> 28,716
<NET-CHANGE-IN-ASSETS> 3,389,985
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 11,142
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 0
<AVERAGE-NET-ASSETS> 3,282,673
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 1.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 0.50
<EXPENSE-RATIO> 0
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the
December 31, 1995 Green Century Funds Semi-Annual Report and is qualified in its
entirety to such Semi-Annual Report.
</LEGEND>
<CIK> 0000877232
<NAME> GREEN CENTURY FUNDS
<SERIES>
<NUMBER> 2
<NAME> BALANCED FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-1996
<PERIOD-START> JUL-1-1995
<PERIOD-END> DEC-31-1995
<INVESTMENTS-AT-COST> 6,279,972
<INVESTMENTS-AT-VALUE> 6,641,434
<RECEIVABLES> 275,812
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 6,917,246
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 21,136
<TOTAL-LIABILITIES> 21,136
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 6,462,875
<SHARES-COMMON-STOCK> 0
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (11,155)
<ACCUMULATED-NET-GAINS> 82,928
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 361,462
<NET-ASSETS> 6,896,110
<DIVIDEND-INCOME> 15,365
<INTEREST-INCOME> 101,245
<OTHER-INCOME> 0
<EXPENSES-NET> 78,281
<NET-INVESTMENT-INCOME> 38,329
<REALIZED-GAINS-CURRENT> 194,177
<APPREC-INCREASE-CURRENT> 10,860
<NET-CHANGE-FROM-OPS> 243,366
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 50,630
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 333,383
<NUMBER-OF-SHARES-REDEEMED> (34,673)
<SHARES-REINVESTED> 3,919
<NET-CHANGE-IN-ASSETS> 3,605,587
<ACCUMULATED-NII-PRIOR> 1,146
<ACCUMULATED-GAINS-PRIOR> (111,249)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 23,386
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 0
<AVERAGE-NET-ASSETS> 6,202,342
<PER-SHARE-NAV-BEGIN> 11.03
<PER-SHARE-NII> .062
<PER-SHARE-GAIN-APPREC> .463
<PER-SHARE-DIVIDEND> .085
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.47
<EXPENSE-RATIO> 2.50
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>