These are the headlines you Need2Know:
* **Trump Threatens Iran on Twitter:**
President Trump lashed out against Iranian President Hassan Rouhani late Sunday, warning him -- in an all-caps [tweet](https://twitter.com/realDonaldTrump/status/1021234525626609666) -- to "never, ever threaten the United States again or you will suffer the consequences the likes of which few throughout history have ever suffered before." His tweet comes in response to Rouhani's warning to Trump that "war with Iran is the mother of all wars." Read the details on [NPR.](https://www.npr.org/2018/07/23/631454795/trump-to-irans-president-never-ever-threaten-the-u-s-again)
* **Deadly Shooting in Toronto:**
Two people died and a dozen others were wounded in Toronto after a shooter opened fire in a popular neighborhood late Sunday. Neither of the victims has been identified. Authorities say the gunman is also dead, and they are now investigating the motive behind the shooting. Read the latest on [CNN.](https://www.cnn.com/2018/07/22/americas/toronto-restaurant-shooting/index.html)
* **Mourning Boat Accident Victims:**
The 17 victims of the duck boat accident in Missouri were remembered in a service on Sunday near the site of the accident. The memorial came as federal investigators are examining the boat's black box and video footage. Read more at [CBS News.](https://www.cbsnews.com/news/branson-community-mourns-missouri-duck-boat-victims-today-2018-07-22/)
* **Italian Wins the British Open:**
Francesco Molinari claimed the Claret Jug on Sunday, becoming the first Italian to win a major. He outlasted Tiger Woods, Jordan Spieth, Rory McIlroy and others to secure the prize. Read more at [BBC.](https://www.bbc.com/sport/golf/44918313)
Cheddar's Hope King gets into the latest.
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The United Nations High Commissioner for Refugees (UNHCR) has reported that an estimated one million people have fled from Ukraine since Russia invaded. Christopher Boian, senior communications officer at UNHCR, joined Cheddar News to report on the current refugee crisis and what the world might expect if conditions continue to worsen. "We have planning figures that forecast as many as four million people could be forced to flee Ukraine," he said. "But that very much depends on how the conflict underway in that country at the moment unfolds in the days and possibly weeks ahead."
Under the U.S. Renewable Fuel Standard (RFS), corn-based ethanol has been mixed into gasoline sold at pumps in the U.S. since 2005, when a policy was enacted aimed at reducing emissions. Corn-based ethanol had been thought to be a relatively greener energy source compared to other biofuels, but now, a new study published in the Proceedings of the National Academy of Sciences reports it may be actually worse for the climate than straight gasoline. Tyler Lark, an assistant scientist at the University of Wisconsin-Madison's Center for Sustainability, joined Cheddar News' Closing Bell and discussed the pushback against the study. "Essentially when you need to produce more corn to meet the demand for use as ethanol as fuel, farmers respond and they switch more crops like soybeans and wheat into corn," Lark said. "They also bring more land into production, so things that used to be pasture grassland, and both those activities are associated with increased greenhouse gas emissions."
U.S. President Joe Biden’s administration on Thursday announced new sanctions against Russian oligarchs and others in President Vladimir Putin’s inner circle.
Christian Blauvelt, executive managing editor at IndieWire, joins Cheddar News to discuss the growing number of studios pulling content from Russia over Ukraine invasion.
Russian forces are battling for control of a crucial energy-producing city in Ukraine’s south and gaining ground in their bid to cut off the country from the sea.
In the past few years, Betthany Frankel has made a major name for herself as a philanthropist after founding the
BStrong initiative, which has provided relief to people impacted by natural disasters as well as the COVID-19 pandemic. Now, BStrong is shifting its focus to Ukraine, raising millions of dollars in donations for those impacted by Russia's invasion. Bethenny Frankel, the founder of BStrong, joins Cheddar News' Closing Bell to discuss.
Bryan Lee, Chief Investment Officer at Blue Zone Wealth Advisors, joins Cheddar News' Closing Bell, where he elaborates on the volatility we've seen in the markets this week fueled by rising oil prices and the ongoing Russian invasion of Ukraine.
Francesca Chambers, White House correspondent for McClatchy, joins Cheddar News to discuss all the topics President Biden has to juggle in his State of the Union address.
