Signage for protocols against the coronavirus disease (COVID-19) are seen on the floor before entering a lab that is turning algae into renewable and biodegradable polyurethanes on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

Algae is seen after going through an extraction process as it is turned into renewable and biodegradable polyurethane on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

A chart showing the breakdown of the biodegradation of polyurethane made from algae is shown in a lab on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake,

A small continuous pump system that helps turn algae into renewable and biodegradable polyurethane is seen in a lab on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

UC San Diego chemistry professor Michael Burkart (R) is seen in a lab where he and his students are making algae into flip-flops after inventing a way to make renewable and biodegradable polyurethanes from algae they grow in a greenhouse on campus in UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

Flip-Flops made from algae that was turned into biodegradable and renewable polyurethane are shown on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

UC San Diego chemistry professor Michael Burkart is reflected in a lab window next to an algae greenhouse on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

UC San Diego chemistry professor Michael Burkart walks into one of his labs next to a greenhouse used to grow algae on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

UC San Diego chemistry professor Michael Burkart stands next to a greenhouse used to grow algae on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

UC San Diego chemistry professor Michael Burkart poses for a picture as he and his students are making flip-flops after inventing a way to make renewable and biodegradable polyurethanes from algae they grow in a greenhouse lab on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

Algae is grown in a green house before being turned into renewable and biodegradable polyurethanes on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

UC San Diego chemistry professor Michael Burkart looks over algae as it is grown in a green house before being turned into renewable and biodegradable polyurethanes on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

UC San Diego chemistry professor Michael Burkart looks over algae as it is grown in a green house before being turned into renewable and biodegradable polyurethanes on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

Renewable and biodegradable polyurethane made from algae and turned into a flip-flop is shown at a lab on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

Extracted chemicals from algae are shown in a lab on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

A renewable and biodegradable polyurethane made from algae is shown at a lab on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

Renewable and biodegradable polyurethane made from algae and turned into a flip-flop is shown at a lab on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

Control modules that maintain a small continuous production system that helps turn algae into renewable and biodegradable polyurethanes are shown in a lab on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

A small continuous production system that helps turn algae into renewable and biodegradable polyurethanes is shown in a lab on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

French street artist Saype poses at the Eiffel Tower in front of his giant artwork "Beyond Walls", a spray-paint series of interlocked hands across the lawns of the Champs de Mars in Paris, France, June 14, 2019. His biodegradable painting pays tribute to the work of the migrant charity SOS Mediterranee. REUTERS/Philippe Wojazer

French street artist Saype poses at the Eiffel Tower in front of his giant artwork "Beyond Walls", a spray-paint series of interlocked hands across the lawns of the Champs de Mars in Paris, France, June 14, 2019. His biodegradable painting pays tribute to the work of the migrant charity SOS Mediterranee. REUTERS/Philippe Wojazer

French street artist Saype poses at the Eiffel Tower in front of his giant artwork "Beyond Walls", a spray-paint series of interlocked hands across the lawns of the Champs de Mars in Paris, France, June 14, 2019. His biodegradable painting pays tribute to the work of the migrant charity SOS Mediterranee. REUTERS/Philippe Wojazer

French street artist Saype poses at the Eiffel Tower in front of his giant artwork "Beyond Walls", a spray-paint series of interlocked hands across the lawns of the Champs de Mars in Paris, France, June 14, 2019. His biodegradable painting pays tribute to the work of the migrant charity SOS Mediterranee. REUTERS/Philippe Wojazer

VeganBottles with zero oil 100% biodegradable compostable made from sugar cane are seen on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

VeganBottles with zero oil 100% biodegradable compostable made from sugar cane are pictured on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

A VeganBottle with zero oil 100% biodegradable compostable made from sugar cane is seen on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

VeganBottles with zero oil 100% biodegradable compostable made from sugar cane are seen on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

VeganBottles with zero oil 100% biodegradable compostable made from sugar cane are seen on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

VeganBottles with zero oil 100% biodegradable compostable made from sugar cane are seen on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

An employee holds a VeganBottle with zero oil 100% biodegradable compostable made from sugar cane at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

A VeganBottle with zero oil 100% biodegradable compostable made from sugar cane is seen on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

A VeganBottle with zero oil 100% biodegradable compostable made from sugar cane is seen on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

An employee holds a VeganBottle with zero oil 100% biodegradable compostable made from sugar cane at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

VeganBottle with zero oil 100% biodegradable compostable made from sugar cane is pictured near bagasse sugar cane (L) and the raw material (C) at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

Packaging of VeganBottles with zero oil 100% biodegradable compostable made from sugar cane is pictured on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

VeganBottles with zero oil 100% biodegradable compostable made from sugar cane are displayed at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

VeganBottle with zero oil 100% biodegradable compostable made from sugar cane are seen on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

VeganBottle with zero oil 100% biodegradable compostable made from sugar cane are seen on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

A VeganBottle with zero oil 100% biodegradable compostable made from sugar cane is seen on the production line at the Lyspackaging factory in Saintes, France, September 13, 2018. REUTERS/Regis Duvignau

Researcher Amal El Husseiny works on her project to create biodegradable plastic bags from shrimp shells, a project in collaboration with Nottingham University, at the Nile University in Cairo, Egypt February 28, 2017. Picture taken February 28, 2017. REUTERS/ Mohamed Zaki

Researcher Marwa Faisal works on her project to create biodegradable plastic bags from shrimp shells, a project in collaboration with Nottingham University, at the Nile University in Cairo, Egypt February 28, 2017. Picture taken February 28, 2017. REUTERS/ Mohamed Zaki

Assistant professor Irene Samy and researcher Marwa Faisal work on their project to create biodegradable plastic bags from shrimp shells, a project in collaboration with Nottingham University, at the Nile University in Cairo, Egypt February 28, 2017. Picture taken February 28, 2017. REUTERS/ Mohamed Zaki

Shells and peel shrimp are seen before creating biodegradable plastic bags, a project in collaboration with Nottingham University, at the Nile University in Cairo, Egypt February 28, 2017. Picture taken February 28, 2017. REUTERS/ Mohamed Zaki

Researcher Marwa Faisal works on her project to create biodegradable plastic bags from shrimp shells, in collaboration with Nottingham University, at the Nile University in Cairo, Egypt February 28, 2017. Picture taken February 28, 2017. REUTERS/ Mohamed Zaki

Researcher Hani Chbib talks with Reuters TV about the project to create biodegradable plastic bags from shrimp shells in collaboration with Nottingham University, at the Nile University in Cairo, Egypt February 28, 2017. Picture taken February 28, 2017. REUTERS/ Mohamed Zaki

Biodegradable urns are seen during an organic market in Lisbon, Portugal, November 5, 2016. REUTERS/Rafael Marchante

PLASTIC-WORMS/ - Explainer on how mealworms can help biodegrade Styrofoam. (SIN04)

A crew cleans an automobile at Eco Clean Auto Clean in Redwood City, California May 12, 2015. The car wash uses no hoses or running water and approximately one cup of water, mixed with a biodegradable formula, is required for each vehicle it cleans, according to the owner. REUTERS/Robert Galbraith TPX IMAGES OF THE DAY

A worker cleans the window of an automobile at Eco Clean Auto Clean in Redwood City, California May 12, 2015. The car wash uses no hoses or running water and approximately one cup of water, mixed with a biodegradable formula, is required for each vehicle it cleans, according to the owner. REUTERS/Robert Galbraith

A worker applies a cleaning solution to an automobile at Eco Clean Auto Clean in Redwood City, California May 12, 2015. The car wash uses no hoses or running water and approximately one cup of water, mixed with a biodegradable formula, is required for each vehicle it cleans, according to the owner. REUTERS/Robert Galbraith

A worker cleans the window of an automobile at Eco Clean Auto Clean in Redwood City, California May 12, 2015. The car wash uses no hoses or running water and approximately one cup of water, mixed with a biodegradable formula, is required for each vehicle it cleans, according to the owner. REUTERS/Robert Galbraith

A worker tosses a towel while cleaning an automobile at Eco Clean Auto Clean in Redwood City, California May 12, 2015. The car wash uses no hoses or running water and approximately one cup of water, mixed with a biodegradable formula, is required for each vehicle it cleans, according to the owner. REUTERS/Robert Galbraith

A crew member cleans the window of an automobile at Eco Clean Auto Clean in Redwood City, California May 12, 2015. The car wash uses no hoses or running water and approximately one cup of water, mixed with a biodegradable formula, is required for each vehicle it cleans, according to the owner. REUTERS/Robert Galbraith

A worker wrings water from a towel while cleaning an automobile at Eco Clean Auto Clean in Redwood City, California May 12, 2015. The car wash uses no hoses or running water and approximately one cup of water, mixed with a biodegradable formula, is required for each vehicle it cleans, according to the owner. REUTERS/Robert Galbraith

A crew cleans an automobile at Eco Clean Auto Clean in Redwood City, California May 12, 2015. The car wash uses no hoses or running water and approximately one cup of water, mixed with a biodegradable formula, is required for each vehicle it cleans, according to the owner. REUTERS/Robert Galbraith

An automobile is seen at the entrance to Eco Clean Auto Clean in Redwood City, California May 12, 2015. The car wash uses no hoses or running water and approximately one cup of water, mixed with a biodegradable formula, is required for each vehicle it cleans, according to the owner. REUTERS/Robert Galbraith

A crew member cleans the wheels of an automobile at Eco Clean Auto Clean in Redwood City, California May 12, 2015. The car wash uses no hoses or running water and approximately one cup of water, mixed with a biodegradable formula, is required for each vehicle it cleans, according to the owner. REUTERS/Robert Galbraith