A fisherman throws fish, caught from Brantas river, onto the land in Mojokerto, East Java province, Indonesia, July 30, 2019. REUTERS/Willy Kurniawan.

Buadi, who is a scavenger from Sidoarjo, smokes cigarette as he takes rest near Bangun village in Mojokerto, East Java province, Indonesia, July 29, 2019. REUTERS/Willy Kurniawan.

Workers sort plastics and scraps collected by scavengers at a collecting site in Mojokerto, East Java province, Indonesia, August 1, 2019. REUTERS/Willy Kurniawan.

Collected plastic waste is pictured before it is sorted at Bangun village in Mojokerto, East Java province, Indonesia, August 1, 2019. REUTERS/Willy Kurniawan.

Fish inside jerry cans are pictured at Brantas river bank in Mojokerto, East Java province, Indonesia, July 30, 2019. REUTERS/Willy Kurniawan.

Kusmani, a 55-year-old woman who has been a scavenger for more than 20 years, holds a used can as she sorts rubbish at Bangun village in Mojokerto, East Java province, Indonesia, July 29, 2019. REUTERS/Willy Kurniawan.

A worker uses waste to burn as fuel at tofu factory in Sidoarjo, East Java province, Indonesia, July 31, 2019. REUTERS/Willy Kurniawan.

Scraps sorted inside a basket are pictured at a collecting site in Mojokerto, East Java province, Indonesia, August 1, 2019. REUTERS/Willy Kurniawan.

Plastics sorted inside a basket are pictured at a collecting site in Mojokerto, East Java province, Indonesia, August 1, 2019. REUTERS/Willy Kurniawan.

Plastics sorted inside a basket are pictured at a collecting site in Mojokerto, East Java province, Indonesia, August 1, 2019. REUTERS/Willy Kurniawan SEARCH "KURNIAWAN TRASH" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. - RC1C26EF1210

Plastics sorted inside a basket are pictured at a collecting site in Mojokerto, East Java province, Indonesia, August 1, 2019. REUTERS/Willy Kurniawan.

Salam, 54, drinks coffee inside a stall with his grandson Rayhan Fastabichul Khoirot, before he starts work at Bangun village in Mojokerto, East Java province, Indonesia, July 31, 2019. Salam said recycled rubbish paid for his children's schooling, and also bought a house for his family and livestock. "I have nine goats now," said Salam, who works as a waste broker between villagers and a nearby paper factory and says his job is easier than farming. REUTERS/Willy Kurniawan.

Children lay down as they play on pile of rubbish at Bangun village in Mojokerto, East Java province, Indonesia, July 30, 2019. REUTERS/Willy Kurniawan.

Salam, 54, drinks tea before sorting rubbish at Bangun village in Mojokerto, East Java province, Indonesia, August 4, 2019. Salam said recycled rubbish paid for his children's schooling, and also bought a house for his family and livestock. "I have nine goats now," said Salam, who works as a waste broker between villagers and a nearby paper factory and says his job is easier than farming. REUTERS/Willy Kurniawan.

A fisherman collects fish caught from Brantas river in Mojokerto, East Java province, Indonesia, July 30, 2019. REUTERS/Willy Kurniawan.

A worker fries tofu, burning waste for fuel at a home-run business in Sidoarjo, East Java province, Indonesia, July 31, 2019. REUTERS/Willy Kurniawan.

A tree is pictured among the rubbish at Bangun village in Mojokerto, East Java province, Indonesia, July 29, 2019. REUTERS/Willy Kurniawan.

A bird flies above Brantas river in Mojokerto, East Java province, Indonesia, July 31, 2019. REUTERS/Willy Kurniawan.

Plastics sorted inside a basket are pictured at a collecting site in Mojokerto, East Java province, Indonesia, August 1, 2019. REUTERS/Willy Kurniawan.

Sunarni laughs as her husband Salam jokes with his friend near a pile of rubbish at Bangun village in Mojokerto, East Java province, Indonesia, August 1, 2019. Salam said recycled rubbish paid for his children's schooling, and also bought a house for his family and livestock. "I have nine goats now," said Salam, who works as a waste broker between villagers and a nearby paper factory and says his job is easier than farming. REUTERS/Willy Kurniawan.

Plastic waste from food packaging is pictured among the rubbish at Bangun village in Mojokerto, East Java province, Indonesia, July 30, 2019. REUTERS/Willy Kurniawan.

Sunarni sits on a pile of rubbish as her son-in-law sorts rubbish at dusk in Bangun village in Mojokerto, East Java province, Indonesia, July 31, 2019. REUTERS/Willy Kurniawan.

Sampi, a 56-year-old villager, holds up a damaged US dollar note that he found on a pile of rubbish, in Mojokerto, East Java province, Indonesia, July 31, 2019. REUTERS/Willy Kurniawan.

Heri Masud, (L), a scavenger and waste broker, prepares to unload rubbish from a truck at Bangun village in Mojokerto, East Java province, Indonesia, July 29, 2019. REUTERS/Willy Kurniawan. Image for illustrative purposes.

Salam, 54, a scavenger and waste broker, pulls off a net from his paddy field as he prepares to harvest in Mojokerto, East Java province, Indonesia, August 1, 2019. Salam said recycled rubbish paid for his children's schooling, and also bought a house for his family and livestock. "I have nine goats now," said Salam, who works as a waste broker between villagers and a nearby paper factory and says his job is easier than farming. REUTERS/Willy Kurniawan.