GREEN CENTURY FUNDS
NSAR-BT, 1998-09-28
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<PAGE>      PAGE  1
000 B000000 07/31/98
000 C000000 0000877232
000 D000000 Y
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
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 C010200  2
007 C020200 BALANCED FUND
007 C030200 N
007 C010300  3
007 C020300 EQUITY FUND
007 C030300 N
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 SUNSTONE FINANCIAL GROUP, INC.
010 C01AA02 MILWAUKEE
010 C02AA02 WI
010 C03AA02 53202
011 A00AA01 SUNSTONE DISTRIBUTION SERVICES, LLC
011 B00AA01 8-42106
011 C01AA01 MILWAUKEE
011 C02AA01 WI
011 C03AA01 53202
012 A00AA01 INVESTORS BANK & TRUST COMPANY
<PAGE>      PAGE  2
012 B00AA01 85-720
012 C01AA01 BOSTON
012 C02AA01 MA
012 C03AA01 02116
013 A00AA01 KPMG PEAT MARWICK, LLP
013 B01AA01 BOSTON
013 B02AA01 MA
013 B03AA01 02110
020 A000001 FIRST BOSTON
020 B000001 13-5659485
020 C000001      1
020 A000002 MERRIL LYNCH, PIERCE, FENNER & SMITH
020 B000002 13-5674085
020 C000002      0
020 A000003 DAIN BOSWORTH INCORPORATED
020 B000003 41-0212020
020 C000003      0
020 C000004      0
020 C000005      0
020 C000006      0
020 C000007      0
020 C000008      0
020 C000009      0
020 C000010      0
021  000000        2
022 A000001 SALOMON SMITH BARNEY
022 B000001 13-3082694
022 C000001     19741
022 D000001        52
022 A000002 DOMINI SOCIAL INDEX PORTFOLIO
022 B000002 04-3081260
022 C000002     10111
022 D000002      1738
022 A000003 HERZOG, HEINE, GEDULD, INC.
022 B000003 13-1955436
022 C000003       284
022 D000003         0
022 A000004 ADAMS HARKNESS & HILL INC.
022 B000004 04-2149932
022 C000004        75
022 D000004         0
022 C000005         0
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022 D000006         0
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<PAGE>      PAGE  3
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086 E020000      0
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086 F020000      0
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
<PAGE>      PAGE  5
015 A000201 INVESTORS BANK & TRUST COMPANY
015 B000201 C
015 C010201 BOSTON
015 C020201 MA
015 C030201 02116
015 E010201 X
015 A000202 NATIONAL AUSTRALIA BANK
015 B000202 S
015 C010202 SYDNEY
015 D010202 AUSTRALIA
015 E040202 X
015 A000203 GENERALE DE BANQUE
015 B000203 S
015 C010203 BRUSSELS
015 D010203 BELGIUM
015 E040203 X
015 A000204 ROYAL BANK OF CANADA
015 B000204 S
015 C010204 TORONTO
015 D010204 CANADA
015 E040204 X
015 A000205 BANQUE PARIBAS
015 B000205 S
015 C010205 PARIS
015 D010205 FRANCE
015 E040205 X
015 A000206 DEUTSCHE BANK A.G.
015 B000206 S
015 C010206 FRANKFURT
015 D010206 GERMANY
015 E040206 X
015 A000207 STANDARD CHARTERED BANK
015 B000207 S
015 C010207 TOKYO
015 D010207 JAPAN
015 E040207 X
015 A000208 BANCOMER, S.A.
015 B000208 S
015 C010208 MEXICO CITY
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015 E040208 X
015 A000209 UNION BANK OF NORWAY
015 B000209 S
015 C010209 OSLO
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015 E040209 X
015 A000210 BARCLAYS BANK, PLC
015 B000210 S
015 C010210 LONDON
015 D010210 UNITED KINGDOM
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<PAGE>      PAGE  6
015 A000211 FIRST CHICAGO CLEARING CENTRE
015 B000211 S
015 C010211 LONDON
015 D010211 UNITED KINGDOM
015 E040211 X
015 A000212 MEESPIERSON N.V.
015 B000212 S
015 C010212 AMSTERDAM
015 D010212 NETHERLANDS
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<PAGE>      PAGE  7
042 D000200   0
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048 I010200        0
048 I020200 0.000
048 J010200        0
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048 K010200        0
048 K020200 0.000
049  000200 N
050  000200 N
051  000200 N
052  000200 N
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053 B000200 Y
053 C000200 N
054 A000200 Y
054 B000200 Y
054 C000200 Y
054 D000200 Y
054 E000200 Y
054 F000200 Y
054 G000200 Y
054 H000200 N
054 I000200 N
054 J000200 Y
054 K000200 Y
<PAGE>      PAGE  8
054 L000200 Y
054 M000200 Y
054 N000200 Y
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055 A000200 N
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056  000200 Y
057  000200 N
066 A000200 N
067  000200 Y
068 A000200 N
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069  000200 N
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070 A020200 Y
070 B010200 Y
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070 E010200 Y
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070 F010200 Y
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070 G010200 Y
070 G020200 N
070 H010200 Y
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 Y
070 J020200 Y
070 K010200 N
070 K020200 N
070 L010200 Y
070 L020200 Y
070 M010200 Y
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070 N020200 N
070 O010200 N
070 O020200 N
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070 P020200 N
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070 Q020200 N
070 R010200 N
070 R020200 N
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<PAGE>      PAGE  9
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<PAGE>      PAGE  10
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076  000200     0.00
080 A000200 CHUBB GROUP OF INSURANCE COMPANIES
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082 B000200       10
083 A000200 N
083 B000200        0
084 A000200 N
084 B000200        0
085 A000200 Y
085 B000200 N
015 A000301 INVESTORS BANK & TRUST COMPANY
015 B000301 C
015 C010301 BOSTON
015 C020301 MA
015 C030301 02116
015 E010301 X
018  000300 N
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<PAGE>      PAGE  11
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037  000300 N
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042 E000300   0
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<PAGE>      PAGE  12
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<PAGE>      PAGE  13
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<PAGE>      PAGE  14
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080 A000300 NATIONAL UNION FIRE INSURANCE COMPANY
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085 B000300 N
SIGNATURE   MEG GREIFENKAMP                              
TITLE       ADMINISTRATION      
 


<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000877232
<NAME> GREEN CENTURY FUNDS
<SERIES>
   <NUMBER> 2
   <NAME> BALANCED FUND
       
<S>                             <C>
<PERIOD-TYPE>                   1-MO
<FISCAL-YEAR-END>                          JUL-31-1998
<PERIOD-START>                             JUL-01-1998
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       15,325,912
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<ASSETS-OTHER>                                       0
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<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       39,651
<TOTAL-LIABILITIES>                             39,651
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    14,677,421
<SHARES-COMMON-STOCK>                        1,199,430
<SHARES-COMMON-PRIOR>                        1,180,620
<ACCUMULATED-NII-CURRENT>                        3,077
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      1,013,880
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                     (482,579)
<NET-ASSETS>                                15,211,799
<DIVIDEND-INCOME>                                1,520
<INTEREST-INCOME>                               35,892
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (34,335)
<NET-INVESTMENT-INCOME>                          3,077
<REALIZED-GAINS-CURRENT>                      (32,969)
<APPREC-INCREASE-CURRENT>                  (1,300,712)
<NET-CHANGE-FROM-OPS>                      (1,330,604)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
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<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                         (1.11)
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<EXPENSE-RATIO>                                   2.50
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<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000877232
<NAME> GREEN CENTURY FUNDS
<SERIES>
   <NUMBER> 3
   <NAME> EQUITY FUND
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          JUL-31-1998
<PERIOD-START>                             AUG-01-1997
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                       12,605,974
<INVESTMENTS-AT-VALUE>                      15,426,641
<RECEIVABLES>                                   89,742
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              15,516,383
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
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<TOTAL-LIABILITIES>                             40,806
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    12,577,082
<SHARES-COMMON-STOCK>                          756,959
<SHARES-COMMON-PRIOR>                          312,859
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
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<OVERDISTRIBUTION-GAINS>                             0
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<NET-CHANGE-FROM-OPS>                        1,832,564
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                       (5,456)
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<NUMBER-OF-SHARES-SOLD>                        535,842
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<PER-SHARE-NAV-BEGIN>                            16.86
<PER-SHARE-NII>                                 (0.03)
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<EXPENSE-RATIO>                                   1.50
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


Exhibit to Accompany
Item 77J 
Form N-SAR

Green Century Equity Fund
(the "Fund")


According to the provisions of Statement of Position 93 - 2 (SOP 
93 - 2) "Determination, Disclosure and Financial Statement 
Presentation of Income, Capital Gain and Return of Capital 
Distributions by Investment Companies," the Fund is required to 
report the accumulated net investment income (loss) and 
accumulated net capital gain (loss) accounts to approximate 
amounts available for future distributions on a tax basis (or to 
offset future realized capital gains).  As a result, the Fund has 
reclassified net realized gain of $26,637 to increase undistributed 
net investment income by $26,637 for the year  ended July 31, 
1998.

This reclassification has no impact on the net asset value of the 
Fund and is designed to present the Fund's capital account on a tax 
basis.






To the Board of Trustees and Shareholders
The Green Century Funds

In planning and performing our audit of the financial statements of 
the Green Century Balanced Fund (the "Fund") at July 31, 1998 
and for the month then ended, we considered its internal control, 
including procedures for safeguarding securities, in order to 
determine our auditing procedures for the purpose of expressing 
our opinion on the financial statements and to comply with the 
requirements of Form N-SAR, not to provide assurance on internal 
control.

The management of the Fund is responsible for establishing and 
maintaining internal control.  In fulfilling this responsibility, 
estimates and judgments by management are required to assess the 
expected benefit and related costs of controls. Generally, controls 
that are relevant to an audit pertain to the entity's objective of 
preparing financial statements for external purposes that are fairly 
presented in conformity with generally accepted accounting 
principles.  Those controls include the safeguarding of assets 
against unauthorized acquisition, use, or disposition.

Because of inherent limitations in internal control, errors or 
irregularities may occur and not be detected.  Also, projection of 
any evaluation of internal control to future periods is subject to the 
risk that it may become inadequate because of changes in 
conditions or that the effectiveness of the design and operation 
may deteriorate.

Our consideration of internal control would not necessarily 
disclose all matters in internal control that might be material 
weaknesses under standards established by the American Institute 
of Certified Public Accountants.  A material weakness is a 
condition in which the design or operation of any specific internal 
control component does not reduce to a relatively low level the 
risk that errors or irregularities in amounts that would be material 
in relation to the financial statements being audited may occur and 
not be detected within a timely period by employees in the normal 
course of performing their assigned functions.  However, we noted 
no matters involving internal control, including controls over 
safeguarding securities, that we consider to be material weaknesses 
as defined above as of  July 31, 1998.

This report is intended solely for the information and use of 
management and the Securities and Exchange Commission.


							
	KPMG Peat Marwick LLP
					
							
Boston, Massachusetts
August 24, 1998
Page  










To the Board of Trustees and Shareholders
The Green Century Funds

In planning and performing our audit of the financial statements of 
the Green Century Equity Fund (the "Fund") at July 31, 1998 and 
for the year then ended, we considered its internal control, including 
procedures for safeguarding securities, in order to determine our 
auditing procedures for the purpose of expressing our opinion on the 
financial statements and to comply with the requirements of Form 
N-SAR, not to provide assurance on internal control.

The management of the Fund is responsible for establishing and 
maintaining internal control.  In fulfilling this responsibility, 
estimates and judgments by management are required to assess the 
expected benefit and related costs of controls. Generally, controls 
that are relevant to an audit pertain to the entity's objective of 
preparing financial statements for external purposes that are fairly 
presented in conformity with generally accepted accounting 
principles.  Those controls include the safeguarding of assets against 
unauthorized acquisition, use, or disposition.

Because of inherent limitations in internal control, errors or 
irregularities may occur and not be detected.  Also, projection of any 
evaluation of internal control to future periods is subject to the risk 
that it may become inadequate because of changes in conditions or 
that the effectiveness of the design and operation may deteriorate.

Our consideration of internal control would not necessarily disclose 
all matters in internal control that might be material weaknesses 
under standards established by the American Institute of Certified 
Public Accountants.  A material weakness is a condition in which 
the design or operation of any specific internal control component 
does not reduce to a relatively low level the risk that errors or 
irregularities in amounts that would be material in relation to the 
financial statements being audited may occur and not be detected 
within a timely period by employees in the normal course of 
performing their assigned functions.  However, we noted no matters 
involving internal control, including controls over safeguarding 
securities, that we consider to be material weaknesses as defined 
above as of  July 31, 1998.

This report is intended solely for the information and use of 
management and the Securities and Exchange Commission.


							
	KPMG Peat Marwick LLP
		
							
Boston, Massachusetts
August 24, 1998
Page  








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