Melati and Isabel Wijsen
Indonesian climate activists
Melati Riyanto Wijsen (born 2000) and Isabel Wijsen (born 6 November 2002) are Indonesian climate activists. The two sisters are known for their efforts to reduce plastic consumption in Bali.
The sisters were born in Bali to Dutch and Indonesian parents. In 2013, when Melati was 12 and Isabel was 10 years old, inspired by a lesson about positive world leaders at the Green School Bali, they brainstormed ideas on how to aid Indonesia's problem with plastic pollution, since it is the second worst plastic polluter in the world after China.
When the sisters found out that less than 5% of the plastic bags in Bali were being recycled, They decided to begin their campaign Bye Bye Plastic Bags with the help of other children in the island. In order to gain public attention, the campaign organized cleanups, presentations, and distribution of alternative bags. They organized Bali's biggest beach cleanup in 2018 with 20,000 people who collected 65 tons of waste.
In order to get the government's help, the sisters started a petition in 2015 which would eventually gather 100,000 signatures at the Bali International Airport. It wasn't until they staged a dawn to dusk hunger strike, when they were finally able to successfully arrange a meeting with Bali's then-governor, I Made Mangku Pastika, who promised to make Bali plastic free by 2018.
Bye Bye Plastic Bags is a social initiative and NGO driven by youth to say no to plastic bags.
“Melati and Isabel Wijsen” enters the record as indonesian climate activists. Crown Archives preserves that source wording while asking what Melati, Isabel and Wijsen can confirm, complicate or overturn.
Why this record matters
“Melati and Isabel Wijsen” is worth following because a concise public description often conceals a longer documentary argument. Here, Melati, Isabel and Wijsen provides the most credible route into that argument.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jun 9, 2026. The linked authority identifier is Q97154081. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2000, 2002, 2013 and 2018.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Melati and Isabel Wijsen”, its source revision and the description used here.
- Expand the search: follow Melati and Isabel Wijsen primary sources, Melati and Isabel Wijsen archive and Melati research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Melati and Isabel Wijsen”?
- Which institution is responsible for the underlying evidence?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Melati and Isabel Wijsen” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.