A symbolic street sign named "Khashoggi Way" stands above Connecticut Avenue in the Dupont Circle neighborhood of Washington, U.S., March 2, 2021. REUTERS/Tom Brenner TPX IMAGES OF THE DAY

A man rides an electric scooter past photographs of U.S. Vice President Kamala Harris hanging on an outdoor dining wall at Floriana Italian restaurant in the DuPont Circle neighborhood, in Washington, U.S., February 21, 2021. REUTERS/Al Drago

A man bikes past photographs of U.S. Vice President Kamala Harris hanging on an outdoor dining wall at Floriana Italian restaurant in the DuPont Circle neighborhood, in Washington, U.S., February 21, 2021. REUTERS/Al Drago

The sun rises behind a tree at a park in Jumeirah Village Circle in Dubai, United Arab Emirates, February 17, 2021. REUTERS/Ahmed Jadallah

A worker fixes a solar panel at Jumeirah Village Circle in Dubai, United Arab Emirates, February 17, 2021. REUTERS/Ahmed Jadallah

A girl on a scooter walks past Peter Behan collecting his golf balls after he practiced golf at dusk on an embankment by aiming for a circle in the sand he has drawn on Poolbeg beach as golf links are closed under Government restrictions, amid the outbreak of the coronavirus disease (COVID-19), in Dublin, Ireland February 15, 2021. REUTERS/Clodagh Kilcoyne

Peter Behan collects his golf balls after practicing golf at dusk on an embankment by aiming for a circle in the sand he has drawn on Poolbeg beach as golf links are closed under Government restrictions, amid the outbreak of the coronavirus disease (COVID-19), in Dublin, Ireland February 15, 2021. REUTERS/Clodagh Kilcoyne

Peter Behan practices golf at dusk on an embankment by aiming for a circle in the sand he has drawn on Poolbeg beach as golf links are closed under Government restrictions, amid the outbreak of the coronavirus disease (COVID-19), in Dublin, Ireland February 15, 2021. REUTERS/Clodagh Kilcoyne

Peter Behan practices golf at dusk on an embankment by aiming for a circle in the sand he has drawn on Poolbeg beach as golf links are closed under Government restrictions, amid the outbreak of the coronavirus disease (COVID-19), in Dublin, Ireland February 15, 2021. REUTERS/Clodagh Kilcoyne TPX IMAGES OF THE DAY

Peter Behan climbs down an embankment after playing golf by aiming for a circle in the sand he has drawn on Poolbeg beach as golf links are closed under Government restrictions, amid the outbreak of the coronavirus disease (COVID-19), in Dublin, Ireland February 15, 2021. REUTERS/Clodagh Kilcoyne

Peter Behan practices golf at dusk on an embankment by aiming for a circle in the sand he has drawn on Poolbeg beach as golf links are closed under Government restrictions, amid the outbreak of the coronavirus disease (COVID-19), in Dublin, Ireland. February 15, 2021. REUTERS/Clodagh Kilcoyne

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 13, 2021 General view of socially distanced circles on a hillside outside of Melbourne Park. The tournament continues without crowds today after the state of Victoria was placed under a snap lockdown from Friday to contain a fresh outbreak of the coronavirus disease (COVID-19) REUTERS/Loren Elliott

People listen as Jay Carnegie plays the trumpet during a Crush Funk Brass Band roaming concert, in Anna J. Cooper Circle in the LeDroit Park neighborhood in Washington, U.S., February 9, 2021. Crush Funk Brass Band has played more than 150 concerts in different neighborhoods in the Metropolitan Washington area during the coronavirus pandemic. REUTERS/Al Drago

People listen as Jay Carnegie plays the trumpet during a Crush Funk Brass Band roaming concert, in Anna J. Cooper Circle in the LeDroit Park neighborhood in Washington, U.S., February 9, 2021. Crush Funk Brass Band has played more than 150 concerts in different neighborhoods in the Metropolitan Washington area during the coronavirus pandemic. REUTERS/Al Drago

People listen as Jay Carnegie plays the trumpet during a Crush Funk Brass Band roaming concert, in Anna J. Cooper Circle in the LeDroit Park neighborhood in Washington, U.S., February 9, 2021. Crush Funk Brass Band has played more than 150 concerts in different neighborhoods in the Metropolitan Washington area during the coronavirus pandemic. REUTERS/Al Drago

People listen as Jay Carnegie plays the trumpet during a Crush Funk Brass Band roaming concert, in Anna J. Cooper Circle in the LeDroit Park neighborhood in Washington, U.S., February 9, 2021. Crush Funk Brass Band has played more than 150 concerts in different neighborhoods in the Metropolitan Washington area during the coronavirus pandemic. REUTERS/Al Drago

People listen as the Crush Funk Brass Band performs during a roaming concert, in Anna J. Cooper Circle in the LeDroit Park neighborhood in Washington, U.S., February 9, 2021. Crush Funk Brass Band has played more than 150 concerts in different neighborhoods in the Metropolitan Washington area during the coronavirus pandemic. REUTERS/Al Drago

Groundhog Club Inner Circle President Jeff Lundy speaks to Phil to learn his prediction during a socially distanced and remote event due to the coronavirus disease (COVID-19) on the 135th Groundhog Day at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2021. REUTERS/Alan Freed

Groundhog Club Inner Circle President Jeff Lundy taps on Punxsutawney Phil's stump door to learn his prediction during a socially distanced and remote event due to the coronavirus disease (COVID-19) on the 135th Groundhog Day at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2021. REUTERS/Alan Freed

Groundhog Club Inner Circle Thunder Conductor Dave Gigliotti jokingly takes the temperature of President Jeff Lundy during a socially distanced and remote event due to the coronavirus disease (COVID-19) on the 135th Groundhog Day at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2021. REUTERS/Alan Freed

Groundhog Club Inner Circle Vice President Tom Dunkel holds the scroll with Punxsutawney Phil's forecast of six more weeks of winter as Phil's handler A.J. Dereume gestures during a socially distanced and remote event due to the coronavirus disease (COVID-19) on the 135th Groundhog Day at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2021. REUTERS/Alan Freed

Groundhog Club Inner Circle members tip their top hats during a socially distanced and remote event due to the coronavirus disease (COVID-19) on the 135th Groundhog Day at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2021. REUTERS/Alan Freed

Groundhog Club Inner Circle members make their trek to the Knob past cardboard cutouts of spectators during a socially distanced and remote event due to the coronavirus disease (COVID-19) on the 135th Groundhog Day at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2021. REUTERS/Alan Freed

Groundhog Club Inner Circle Vice President Tom Dunkel holds the scroll with Phil's forecast of six more weeks of winter during a socially distanced and remote event due to the coronavirus disease (COVID-19) on the 135th Groundhog Day at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2021. REUTERS/Alan Freed

Groundhog Club Inner Circle Vice President Tom Dunkel holds the scroll with Phil's forecast during a socially distanced and remote event due to the coronavirus disease (COVID-19) on the 135th Groundhog Day at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2021. REUTERS/Alan Freed

Groundhog Club Inner Circle President Jeff Lundy speaks to Phil to learn his prediction during a socially distanced and remote event due to the coronavirus disease (COVID-19) on the 135th Groundhog Day at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2021. REUTERS/Alan Freed

Groundhog Club members Dave Gigliotti and Dan McGinnis prepare to introduce their Inner Circle during a socially distanced and remote event due to the coronavirus disease (COVID-19) on the 135th Groundhog Day at Gobblers Knob in Punxsutawney, Pennsylvania, U.S., February 2, 2021. REUTERS/Alan Freed

A child's drawing lies next to a round circle on the carpet used for social distancing in the classroom to prevent the spread of the coronavirus disease (COVID-19) at South Boston Catholic Academy in Boston, Massachusetts, U.S., January 28, 2021. REUTERS/Allison Dinner

A student walks on circles painted to maintain safe distance as secondary schools reopen amid the second wave of the coronavirus disease (COVID-19) outbreak, in Karachi, Pakistan January 18, 2021. REUTERS/Akhtar Soomro

A teacher guides a student who walks on circles painted to maintain safe distance as secondary schools reopen amid the second wave of the coronavirus disease (COVID-19) outbreak, in Karachi, Pakistan January 18, 2021. REUTERS/Akhtar Soomro

Students walk on circles, painted to maintain safe distance, as secondary schools reopen amid the second wave of the coronavirus disease (COVID-19) outbreak, in Karachi, Pakistan January 18, 2021. REUTERS/Akhtar Soomro

Members of the media work within social distancing circles as U.S. President-elect Joe Biden delivers remarks during a televised speech on the current economic and health crises at The Queen Theatre in Wilmington, Delaware, U.S., January 14, 2021. REUTERS/Tom Brenner

A woman places a sign on the lectern as the CDU party conference studio is being prepared for the party's digital conference and leadership contest in a hall at Berlin Messe fairgrounds, in Berlin, Germany January 13, 2021. Picture taken January 13, 2021. Due to the coronavirus disease (COVID-19) pandemic, only the closest leadership circle and the three candidates, Norbert Roettgen, Armin Laschet and Friedrich Maerz will attend in person. Odd Andersen/Pool via REUTERS

The private booth of CDU leadership candidate Armin Laschet is seen as the CDU party conference studio is being prepared for the party's digital conference and leadership contest in a hall at Berlin Messe fairgrounds, in Berlin, Germany January 13, 2021. Picture taken January 13, 2021. Due to the coronavirus disease (COVID-19) pandemic, only the closest leadership circle and the three candidates, Norbert Roettgen, Armin Laschet and Friedrich Maerz will attend in person. Odd Andersen/Pool via REUTERS

The private booth of CDU leadership candidate Norbert Roettgen is seen as the CDU party conference studio is being prepared for the party's digital conference and leadership contest in a hall at Berlin Messe fairgrounds, in Berlin, Germany January 13, 2021. Picture taken January 13, 2021. Due to the coronavirus disease (COVID-19) pandemic, only the closest leadership circle and the three candidates, Norbert Roettgen, Armin Laschet and Friedrich Maerz will attend in person. Odd Andersen/Pool via REUTERS

The CDU party conference studio is being prepared for the party's digital conference and leadership contest in a hall at Berlin Messe fairgrounds, in Berlin, Germany January 13, 2021. Picture taken January 13, 2021. Due to the coronavirus disease (COVID-19) pandemic, only the closest leadership circle and the three candidates, Norbert Roettgen, Armin Laschet and Friedrich Maerz will attend in person. Odd Andersen/Pool via REUTERS

The CDU party conference studio is being prepared for the party's digital conference and leadership contest in a hall at Berlin Messe fairgrounds, in Berlin, Germany January 13, 2021. Picture taken January 13, 2021. Due to the coronavirus disease (COVID-19) pandemic, only the closest leadership circle and the three candidates, Norbert Roettgen, Armin Laschet and Friedrich Maerz will attend in person. Odd Andersen/Pool via REUTERS

The private booth of CDU leadership candidate Friedrich Maerz is pictured as the CDU party conference studio is being prepared for the party's digital conference and leadership contest in a hall at Berlin Messe fairgrounds, in Berlin, Germany January 13, 2021. Picture taken January 13, 2021. Due to the coronavirus disease (COVID-19) pandemic, only the closest leadership circle and the three candidates, Norbert Roettgen, Armin Laschet and Friedrich Maerz will attend in person. Odd Andersen/Pool via REUTERS

A Circle K shop, owned by Canadian convenience-store operator Alimentation Couche-Tard, is pictured in Toronto, Ontario, Canada January 13, 2021. REUTERS/Chris Helgren

A logo of a Circle K shop, owned by Canadian convenience-store operator Alimentation Couche-Tard, is pictured in Toronto, Ontario, Canada January 13, 2021. REUTERS/Chris Helgren

A customer enters a Circle K shop, owned by Canadian convenience-store operator Alimentation Couche-Tard, in Toronto, Ontario, Canada January 13, 2021. REUTERS/Chris Helgren

A Washington Metro Transit Police Officer wearing a protective face mask ascends on an escalator at the Dupont Circle Metro Stop in Washington, U.S., December 17, 2020. REUTERS/Tom Brenner

The mass broke from the Antarctic peninsula’s Larsen C ice shelf in July 2017 and headed slowly for the open ocean, sliding through the water for over two years until it hit the powerful Antarctic Circumpolar Current circling the southernmost continent.

The mass broke from the Antarctic peninsula’s Larsen C ice shelf in July 2017 and headed slowly for the open ocean, sliding through the water for over two years until it hit the powerful Antarctic Circumpolar Current circling the southernmost continent.

Reporters sit chairs in circles marked for coronavirus disease pandemic social distancing as Democratic U.S. presidential candidate and former Vice President Joe Biden speaks about his plans for tackling climate change during a campaign event in Wilmington, Delaware, U.S., July 14, 2020. REUTERS/Leah Millis/File Photo TPX IMAGES OF THE DAY SEARCH "POY USA ELECTION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Supporters of U.S. President Donald Trump pray as they walk circles around the U.S. Capitol building in Washington, U.S., Nov. 11, 2020. REUTERS/Leah Millis

People celebrate media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

People celebrate media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

People celebrate media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

A person celebrates media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

A person celebrates media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

People celebrate media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

People celebrate media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

People celebrate media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

Sahana Subramanian, 6, holds a sign as people celebrate media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

A person wears a mask depicting U.S. President Donald Trump as people celebrate media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

A woman wearing a face mask applauds as people celebrate media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

People celebrate media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon

People celebrate media announcing that Democratic U.S. presidential nominee Joe Biden has won the 2020 U.S. presidential election, at Columbus Circle, in the Manhattan borough of New York City, U.S. November 7, 2020. REUTERS/Jeenah Moon