A very warm welcome to all of our viewers worldwide.

We're so thankful to have you watching this Friday, December 18th.

I'm Carla Azuz.

And what better place to start our last show of 2020 than with the year in review?

A couple interesting things happened in 2020 and we're gonna have more details on some of these stories in just a minute.

But when the year dawned, Australia was in the midst of a historic bushfire season.

Tens of millions of acres burned there in the summer of 2019 to 2020.

At around the same time a potentially deadly virus that was first identified in China began to spread first around the Asian country, then around the world.

It would change life as we knew it in many and some unexpected ways.

An international shortage of toilet paper and other paper products, the advent of working from home for many, and it led to the U.S government passing a package worth $2 trillion.

A record amount of money to stimulate the American economy.

Before the year was out, there'd be another push for more spending and Congress was debating a new stimulus package as we produced this show.

The summer saw civil unrest in America.

Protests, marches and calls for changes followed controversial encounters between police and African American civilians.

Some of the demonstrations were peaceful, some were violent, with cars and buildings being damaged and stores being looted.

The wildfires that flared up in California this summer and fall were the most extensive the state had ever seen.

They burned more than four million acres before they were contained.

The Trump administration oversaw several historic peace agreements involving the nation of Israel and four other countries in Africa and the Middle East.

And by December, less than 11 months after the coronavirus pandemic arrived in the U.S., a vaccine was approved for emergency use when no other vaccine had ever been cleared in less than four years.

2020 vision describes seeing things normally, but what happened before our eyes this year was in many ways nothing like we've seen before.

Consider a global pandemic growing worse with surging U.S. cases, hospitalizations and deaths.

A presidential election with a conclusion --- They've delivered us a clear victory.

But not a concession, and wildfires, winds plus the most active Atlantic hurricane season on record.

It's been a record breaking very busy season in 2020.

These stories could have defined 2020 on their own, yet they had plenty of company beginning just three days into the year: President Donald Trump ordered a drone strike to kill top Iranian commander Qassem Soleimani.

He was planning a very major attack and we got him.

Iran called it terrorism and attacked basis housing U.S. forces in Iraq and Afghanistan.

A California helicopter crash in January shocked the world.

As the chief indicated there were no survivors.

Retired Los Angeles Laker Kobe Bryant and his 13-year-old daughter, Gianna, died in the crash with the pilot and six more passengers on their way to Gianna's basketball game.

Women often took center stage.

The loss of trailblazing Supreme Court Justice Ruth Bader Ginsburg to pancreatic cancer.

The appointment of Justice Amy Coney Barrett.

The election of Kamala Harris is the nation's first female, and black and South Asian vice president.

Yet the pandemic was always present.

Unemployment jumped with jobs gone, concerts canceled.

Cruises, Broadway, The Summer Olympics: when some sports resumed, athletes played in front of small or nonexistent stadium crowds.

People wondered.

When would they see crowds again?

In May, they found out: cameras captured Minneapolis police, arresting 46-year-old George Floyd.

For nearly eight minutes Now former police officer Derek Chauvin kneeled on Floyd's neck even after Floyd became unresponsive.

Chauvin and three other officers now face charges related to his death.

The renewed calls for racial justice, which started with Floyd's death, continued.

Briana Taylor, Ahmaud Arbery, Rayshard Brooks, more tragic deaths that fueled a movement.

In America, you can peacefully assemble.

Black lives matter plaza took shape in Washington, D.C., while Civil War monuments came down in Richmond, Virginia.

The nation lost civil rights icon Congressman John Lewis.

55 years after bloody Sunday when he began his quest for equality.

He took his final trip across the Edmund Pettus Bridge in his casket during a weekend of events celebrating his life.

The space program took off in new ways in May.

Space X marked the first successful commercial launch, taking two NASA astronauts to the International Space Station from US soil.

Four more astronauts went to the ISS in November.

And people of all ages decided it was time to try Tiktok.

The Trump administration ordered the Chinese Social Media platform to find a U.S owner, while millions kept using it.

The app says this video got a record 528 million views, perhaps for people needing to take a break from watching all else 2020 had to offer.

I'm Nadia Romera reporting.

10-second trivia!

Who recorded the best selling US musical single of all time?

Taylor Swift, Bing Crosby, Michael Jackson or Elvis Presley?

According to Guinness World Records, Bing Crosby's "White Christmas" is the best selling single in the US and the UK.

Irving Berlin wrote it.

The movie Holiday Inn featured it.

It sold an estimated 50 million copies worldwide after its release in 1942.

And the timing of that release aided in the song's success because so many U.S troops were away from home dreaming of a white Christmas while they fought in World War Two.

But is a snow covered Christmas landscape just like the ones you used to know?

And where in America is the weather guaranteed to cooperate?

CNN 10 contributor Tyler Mauldin explores the science behind the scene.

Nothing says Christmas more Carl than watching snowflakes fly while opening gifts on Christmas morning.

But just simply seeing it snow isn't enough to call it a white Christmas.

According to NOAA, there has to be at least an inch of the white stuff on the ground on December 25th to receive the title.

If you're dreaming of a white Christmas, history says, there are certain places you wanna be .

Based on the 30 year average from 1980 to 2010, your best bet of seeing more than an inch of snow on Christmas Day in the lower 48 are areas such as Maine, Minnesota, upstate New York, the Rockies, Sierra Nevada's, Idaho and the mountains of Pennsylvania and West Virginia.

Basically, you want to be in the mountains or near the U.S-Canada border.

Aspen, Colorado, is one of about a dozen cities with an almost 100% probability.

Steamboat Springs sits at 98%.

Surprisingly, New York City only has a 12% chance, and Miami has never seen a white Christmas.

But these are the historical lots.

An early look at next week's weather pattern, Carl, model suggests the treetops will glisten for many of us, with a breakout of frigid air from the north and a couple of winter storms possibly impact in the country.

Snow or not, 18 year old Tyler Kamholz recently lit his car up like a Christmas tree.

It's beginning to look a lot like Camaro.

His father, a retired police officer, was not impressed because he says he knew it broke the law and Tyler was pulled over, though the state trooper only gave him a warning and took a picture.

Tyler is allowed to keep the lights on the car, but he could only turn them on while driving on back roads.

Forget the halls, y'all.

It's time to deck the cars where there's a wheel.

There's ways to win the holiday light wars.

Clark Griswold Bright idea made a household that it can be, but Tyler's car can make the neighbors red and green with envy.

Haters wanna cover it.

They can't get come there over it.

Admirers are lover it.

Their smiles "hover "over it.

He strings along the colorful car full of Christmas cheer in hopes he doesn't see blue lights behind again this year.

That almost wraps our show for 2020.

I want to give a quick shoutout to Plattsburgh High School in Plattsburg, Missouri, for subscribing and leaving a comment on our YouTube channel.

We wish you all a very merry Christmas.

Happy holidays.

Happy New Year.

We look forward to seeing you again on January 4th.

Thank you for the gift of being the best audience in news.

I'm Carl Azuz for CNN.