| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $1,900–$7,290; 2027: Unconfirmed — check official site | Last year's cycle (2026): $699–$2,500; 2027: Unconfirmed — check official site |
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| Financial aid | Last year's cycle (2026): Summer full or partial need-based scholarship: Amount: Unconfirmed — check official site. Completed 2026 cycle; limited to eligible U.S.-resident students.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Limited need-based scholarships: Amount: Unconfirmed — check official site. Very limited; did not cover residential fees or international students. The separate GI Partners path listed eight Boston-area rising-senior awards below a household-income threshold.; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | Last year's cycle (2026): Summer 2026 application fee: $200. Nonrefundable; part of the USD 700 initial payment.; Summer 2026 enrollment deposit: $500. Applied toward total program cost.; Summer full or partial need-based scholarship: Amount: Unconfirmed — check official site. Completed 2026 cycle; limited to eligible U.S.-resident students.; 2027: Unconfirmed — check official site | Last year's cycle (2026): Residential housing and meals: $699–$2,097. USD 699 per week; included dormitory, three meals daily, supervision, and residential activities. Snacks excluded.; Seat deposit: $200–$500. USD 200 for one-week programs and USD 500 for three-week or remote programs; credited toward tuition.; Optional airport transportation: $50–$99. USD 50 departure one-way, USD 75 arrival one-way, or USD 99 round trip for 2026.; Optional linen rental: $50. Included sheets, pillowcase, and towel.; Limited need-based scholarships: Amount: Unconfirmed — check official site. Very limited; did not cover residential fees or international students. The separate GI Partners path listed eight Boston-area rising-senior awards below a household-income threshold.; 2027: Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Grades 8–12 (provider uses rising grades) | Grades 6–12; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | Residency: Worldwide for the Green Mountains program; 2026 scholarships were restricted to eligible U.S. residents; Requirement: Be in grades 9-12 or be a motivated rising ninth grader; Requirement: Demonstrate interest in climate action, climate science, or sustainability; Requirement: For the summer application, provide an academic reference and a second academic or extracurricular reference; Exclusion: Current grade 8 students who are not rising to grade 9; Exclusion: Applicants seeking academic credit; these offerings are noncredit | Requirement: Select a course matching the student's entering grade and readiness; Requirement: Three-week programs: normally enter grade 8 through college and complete competitive admission; Requirement: One-week programs: perform at grade level or above and register while space remains; Requirement: Pre-high-school programs: meet the specific middle-school grade band; Requirement: Remote students need a suitable device and synchronous availability; Requirement: International students must arrange travel status and pay in full before BLI issues an invitation letter; Exclusion: Not every course accepts every grade in the umbrella range; Exclusion: Three-week and remote acceptance is not guaranteed; Exclusion: Housing, single-room requests, scholarships, preferred campus, airport transport, and course capacity are not guaranteed; Exclusion: International students were ineligible for the general need-based aid described in the 2026 FAQ |
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| Session dates or duration | Last year's cycle (2026): Starts July 5, 2026; Ends July 17, 2026; 2 weeks; 2027: Unconfirmed — check official site | Catalog terms: 1–3 weeks; 2027: Unconfirmed — check official site |
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| Format | Hybrid | In person / Online |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Castleton, Vermont | Boston, Massachusetts, Waltham, Massachusetts, Wellesley, Massachusetts, Weston, Massachusetts, Greater Boston |
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| Selection and application | Selection: The Green Mountains application is selective and was reviewed on a rolling basis until capacity. Application materials: Personal statement of no more than 300 words | Selection: Three-week and remote programs used competitive rolling review based on academic record, curiosity, subject commitment, perspective, and experience. One-week and pre-high-school programs were capacity-based registration. Application materials: Student-written application essay |
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| Official sources | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20 | Source 1 · checked 2026-08-21Source 2 · checked 2026-08-21Source 3 · checked 2026-08-21Source 4 · checked 2026-08-21Source 5 · checked 2026-08-20 |
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