A drop of diesel is seen at the tip of a nozzle in a petrol station in Nice, France, October 20, 2021. REUTERS/Eric Gaillard

A drop of diesel is seen at the tip of a nozzle in a petrol station in Nice, France, October 20, 2021. REUTERS/Eric Gaillard

Drops of diesel are seen at the tip of a nozzle in a petrol station in Oree-d'Anjou, France, October 19, 2021. REUTERS/Stephane Mahe

A firefighting helicopter flies above the railroad on its way to make water drop on the Alisal fire, on the Gaviota coast near Santa Barbara, California, U.S., October 14, 2021. REUTERS/Aude Guerrucci

A firefighting helicopter makes a water drop on flames from the Alisal fire in the partially burned Aguajito Canyon near Santa Barbara, California, U.S., October 14, 2021. REUTERS/Aude Guerrucci

A firefighting helicopter makes a water drop on flames from the Alisal fire in the partially burned Aguajito Canyon near Santa Barbara, California, U.S., October 14, 2021. REUTERS/Aude Guerrucci

A firefighting helicopter makes a water drop on flames from the Alisal fire in Aguajito Canyon near Santa Barbara, California, U.S., October 14, 2021. REUTERS/Aude Guerrucci TPX IMAGES OF THE DAY

A firefighting helicopter makes a water drop on flames from the Alisal fire in Aguajito Canyon near Santa Barbara, California, U.S., October 14, 2021. REUTERS/Aude Guerrucci

A firefighting helicopter makes a water drop on flames from the Alisal fire in Aguajito Canyon near Santa Barbara, California, U.S., October 14, 2021. REUTERS/Aude Guerrucci

A firefighting helicopter makes a water drop on flames from the Alisal fire, while firefighters work on a hot spot in Aguajito Canyon near Santa Barbara, California, U.S., October 14, 2021. REUTERS/Aude Guerrucci

A firefighting helicopter makes a water drop on flames from the Alisal fire in Aguajito Canyon near Santa Barbara, California, U.S., October 14, 2021. REUTERS/Aude Guerrucci

A firefighting helicopter makes a water drop on flames from the Alisal fire in Aguajito Canyon near Santa Barbara, California, U.S., October 14, 2021. REUTERS/Aude Guerrucci

A firefighting helicopter prepares to make a water drop as the Alisal fire burns, near Solvang, Santa Barbara County, California, U.S., October 13, 2021. Picture taken October 13, 2021. REUTERS/Aude Guerrucci

A firefighting aircraft drops fire retardant as the Alisal fire burns, near Goleta, Santa Barbara County, California, U.S., October 13, 2021. Picture taken October 13, 2021. REUTERS/Aude Guerrucci

A firefighting helicopter makes a water drop as the Alisal fire burns, near Aguajito Canyon in Santa Barbara County, California, U.S., October 13, 2021. Picture taken October 13, 2021. REUTERS/Aude Guerrucci

Palestinian grandmother Jihad Butto, 85, celebrates obtaining a bachelor's degree in religious studies with her family at her home in Nazareth, Israel October 9, 2021. Picture taken on October 9, 2021. REUTERS/Ammar Awad

Rugby Union - Premiership - Gloucester Rugby v Sale Sharks - Kingsholm Stadium, Gloucester, Britain - October 9, 2021 Gloucester's Adam Hastings celebrates after a drop goal Action Images/Andrew Boyers

Rugby Union - Premiership - Gloucester Rugby v Sale Sharks - Kingsholm Stadium, Gloucester, Britain - October 9, 2021 Gloucester's Adam Hastings celebrates after a drop goal Action Images/Andrew Boyers

Rugby Union - Premiership - Gloucester Rugby v Sale Sharks - Kingsholm Stadium, Gloucester, Britain - October 9, 2021 Gloucester's Adam Hastings celebrates after a drop goal Action Images/Andrew Boyers

Palestinian grandmother Jihad Butto, 85, tends to her garden at her home in Nazareth, Israel October 8, 2021. Picture taken on October 8, 2021. REUTERS/Ammar Awad

Palestinian grandmother Jihad Butto, 85, reviews her university notes, after obtaining a bachelor's degree in religious studies, at her home in Nazareth, Israel October 8, 2021. Picture taken on October 8, 2021. REUTERS/Ammar Awad TPX IMAGES OF THE DAY

Palestinian grandmother Jihad Butto, 85, uses her laptop, after obtaining a bachelor's degree in religious studies, at her home, in Nazareth, Israel October 8, 2021. Picture taken October 8, 2021. REUTERS/Ammar Awad

Members of a high altitude team clearing alien vegetation walk as a helicopter drops supplies high above the Franschhoek mountains near Cape Town, South Africa, October 7, 2021. Picture taken October 7, 2021. REUTERS/Mike Hutchings

A member of a high altitude alien vegetation clearing team looks on as a helicopter drops supplies high above the Franschhoek mountains near Cape Town, South Africa, October 7, 2021. Picture taken October 7, 2021. REUTERS/Mike Hutchings

A robot drops a parcel in a mail sack at the Hellenic Post's sorting centre in Kryoneri, Greece, October 4, 2021. Picture taken October 4, 2021. REUTERS/Alkis Konstantinidis

Rugby Union - Premiership - Leicester Tigers v Saracens - Welford Road Stadium, Leicester, Britain - October 2, 2021 Leicester Tigers' Jack van Poortvliet drops the ball Action Images/John Clifton

A delivery driver drops fuel into a petrol station in Stoke-on-Trent, Staffordshire, Britain, September 29, 2021. REUTERS/Carl Recine

A delivery driver drops fuel into a petrol station in Stoke-on-Trent, Staffordshire, Britain, September 29, 2021. REUTERS/Carl Recine

A delivery driver drops fuel into a petrol station in Stoke-on-Trent, Staffordshire, Britain, September 29, 2021. REUTERS/Carl Recine

A delivery driver drops fuel into a petrol station in Stoke-on-Trent, Staffordshire, Britain, September 29, 2021. REUTERS/Carl Recine

A delivery driver drops fuel into a petrol station in Stoke-on-Trent, Staffordshire, Britain, September 29, 2021. REUTERS/Carl Recine

A delivery driver drops fuel into a petrol station in Stoke-on-Trent, Staffordshire, Britain, September 29, 2021. REUTERS/Carl Recine

A delivery driver drops fuel into a petrol station in Stoke-on-Trent, Staffordshire, Britain, September 29, 2021. REUTERS/Carl Recine

A firefighting helicopter drops water on hotspots burning in the KNP Complex fire, at Sequoia National Park in Tulare County, California, U.S. September 18, 2021. REUTERS/Fred Greaves

A firefighting helicopter drops water on hotspots burning in the KNP Complex fire, at Sequoia National Park in Tulare County, California, U.S. September 18, 2021. REUTERS/Fred Greaves

A firefighting helicopter drops water on hotspots burning in the KNP Complex fire, at Sequoia National Park in Tulare County, California, U.S. September 18, 2021. REUTERS/Fred Greaves

A firefighting helicopter drops water on hotspots burning in the KNP Complex fire, at Sequoia National Park in Tulare County, California, U.S. September 18, 2021. REUTERS/Fred Greaves

A firefighter helicopter drops water on hotspots burning in the KNP Complex fire at Sequoia National Park, in Tulare County, California, U.S. September 18, 2021. REUTERS/Fred Greaves

Voters drop off their mail-in ballots as California goes to the polls in a gubernatorial recall election allowing the voting public to remove current governor Gavin Newsom and replace him with one of 46 candidates, in Sacramento, California, U.S., September 14, 2021. REUTERS/Fred Greaves

Wanda Yates puts mail in ballots in a collection box as California goes to the polls in a gubernatorial recall election allowing the voting public to remove current governor Gavin Newsom and replace him with one of another possible 46 other candidates in Sacramento, California, U.S., September 14, 2021. REUTERS/ Fred Greaves

A voter drops off their mail-in ballot as California goes to the polls in a gubernatorial recall election allowing the voting public to remove current governor Gavin Newsom and replace him with one of another possible 46 other candidates in Sacramento, California, U.S., September 14, 2021. REUTERS/ Fred Greaves

A voter deposits mail-in ballots in a collection box as California goes to the polls in a gubernatorial recall election allowing the voting public to remove current governor Gavin Newsom and replace him with one of another possible 46 other candidates in Sacramento, California, U.S., September 14, 2021. REUTERS/ Fred Greaves

A voter drops off their mail-in ballot as California goes to the polls in a gubernatorial recall election allowing the voting public to remove current governor Gavin Newsom and replace him with one of another possible 46 other candidates in Sacramento, California, U.S., September 14, 2021. REUTERS/ Fred Greaves

A voter drops off their mail-in ballot as California goes to the polls in a gubernatorial recall election allowing the voting public to remove current governor Gavin Newsom and replace him with one of another possible 46 other candidates in Sacramento, California, U.S., September 14, 2021. REUTERS/ Fred Greaves

A voter drops off their mail-in ballot as California goes to the polls in a gubernatorial recall election allowing the voting public to remove current governor Gavin Newsom and replace him with one of another possible 46 other candidates in Sacramento, California, U.S., September 14, 2021. REUTERS/ Fred Greaves

Voters drop off mail in ballots at the Registerer of Voters during the California gubernatorial recall election in San Diego, California, U.S., September 14, 2021 . REUTERSMike Blake

Voters drop off mail in ballots at the Registerer of Voters during the California gubernatorial recall election in San Diego, California, U.S., September 14, 2021 . REUTERSMike Blake

Voters drop off mail in ballots at the Registerer of Voters during the California gubernatorial recall election in San Diego, California, U.S., September 14, 2021 . REUTERSMike Blake

Voters drop off mail in ballots at the Registerer of Voters during the California gubernatorial recall election in San Diego, California, U.S., September 14, 2021 . REUTERSMike Blake

A voters drops off mail in ballots at the Registerer of Voters during the California gubernatorial recall election in San Diego, California, U.S., September 14, 2021 . REUTERSMike Blake

A helicopter flies before it makes a water drop over a wildfire on Sierra Bermeja mountain, in Benarraba, near Estepona, Spain, September 13, 2021. REUTERS/Jon Nazca

A helicopter makes a water drop over a wildfire on Sierra Bermeja mountain, in Genalguacil, near Estepona, Spain, September 11, 2021. REUTERS/Jon Nazca

A helicopter makes a water drop over a wildfire on Sierra Bermeja mountain, in Genalguacil, near Estepona, Spain, September 11, 2021. REUTERS/Jon Nazca

A firefighting plane makes a water drop over buildings near a wildfire burning on Sierra Bermeja mountain, in Estepona, Spain, September 10, 2021. REUTERS/Jon Nazca

Firefighting planes are seen flying from Parauta before making a water drop over a wildfire on Sierra Bermeja mountain, in Estepona, Spain, September 10, 2021. REUTERS/Jon Nazca

Firefighting planes are seen flying from Parauta as they make a water drop over a wildfire on Sierra Bermeja mountain, in Estepona, Spain, September 10, 2021. REUTERS/Jon Nazca

A helicopter makes a water drop over a wildfire on Sierra Bermeja mountain, in Estepona, Spain, September 9, 2021. REUTERS/Jon Nazca

A helicopter makes a water drop over a wildfire on Sierra Bermeja mountain, in Estepona, Spain, September 9, 2021. REUTERS/Jon Nazca

A helicopter makes a water drop over a wildfire burning near buildings on Sierra Bermeja mountain in Estepona, Spain, September 9, 2021. REUTERS/Jon Nazca