Youth protests sweep the globe demanding action on climate change

The details: Thunberg has made clear that she understands the implications of the science showing that the world has a narrow window of time to cut greenhouse gas emissions before locking in more significant global warming impacts. Speaking at the climate talks in Poland, she shamed negotiators there for not acting boldly:

"Adults keep saying we owe it to the young people, to give them hope," Thunberg said, "But I don't want your hope. I don't want you to be hopeful. I want you to panic. I want you to feel the fear I feel every day. I want you to act. I want you to act as you would in a crisis. I want you to act as if the house is on fire, because it is."

What's happening:

Our thought bubble, per Axios' Andrew Freedman: The protests on Friday are the largest and most widespread demonstrations on this issue since the run-up to the Paris Climate Summit in 2014 and 2015, and show that young people feel a sense of urgency on this issue that those in power have lacked.

In the U.S. the youth movement is poised to play a significant role in the 2020 presidential election, having already pushed Democratic primary candidates to embrace the Green New Deal.

What's next: In the U.S., climate groups such as Zero Hour and the Sunrise Movement are coordinating demonstrations on Friday as well as subsequent work to advocate for ambitious climate policies. Much of their efforts will focus on climate justice issues.

"It's reasonable to assume that climate change is separate from all other issues. But that’s wrong, and it is dangerous to even push the narrative that climate justice and social justice are separate," Jamie Margolin, founder of Zero Hour, said in a statement.

Go deeper: A tipping point on climate change

• Johnson asked the Justice Department earlier this week to look into links between Ukraine and Hillary Clinton's 2016 presidential campaign. His letter questioned the narrative that Biden's actions in Ukraine had nothing to do with his son's connection.
• However, it was also discovered that he signed onto a 2016 letter that mirrored Biden's work to reform Ukraine's prosecutor general and judiciary.
• There is no evidence that Biden's reform work in Ukraine was to protect his son's business dealings, as the president and some of his allies allege, or that he committed any form of corruption.

The state of play: Sondland, a Trump political appointee who donated $1 million to the president's inaugural committee, denied that there was a quid pro quo between the Trump administration and Ukraine's government in a series of text messages that former Ukraine special envoy Kurt Volker provided to a group of House committees investigating the Trump-Ukraine matter.

• "I think it’s crazy to withhold security assistance for help with a political campaign," Bill Taylor, the top U.S. diplomat to Ukraine, texted Sondland.
• Sondland texted back: "Bill, I believe you are incorrect about President Trump's intentions. The President has been crystal clear no quid pro quo's of any kind."
• The New York Times reported that Sondland's response came only after he spoke to the president.

Go deeper: House committees release texts from former Ukraine envoy Kurt Volker

The big picture: The hacking attempts were not technologically complicated, and often involved using personal information found through research to reset victim passwords, including breaching a user’s backup email account to leverage access to a primary Microsoft-managed account.

• The group Microsoft believes is behind the hacks is well-documented and directed by the Iranian government. In different naming schemes, it is called APT 35, Charming Kitten, The Ajax Security Team and Phosphorus.

The motive of the hackers is not immediately clear. Though election tampering is likely at the front of the American psyche for the U.S. targets, most foreign espionage is just espionage — spying to gain information to better understand global affairs and negotiations.

Go deeper: For hacked campaigns, 2020 might as well be 2016

Volker's 5 big points:

1. "[M]y efforts were entirely focused on advancing U.S. foreign policy goals with respect to Ukraine."
2. "I became concerned that a negative narrative about Ukraine, fueled by assertions made by Ukraine’s departing Prosecutor General, was reaching the President of the United States, and impeding our ability to support the new Ukrainian government as robustly as I believed we should."
3. "[A]t no time was I aware of or took part in an effort to urge Ukraine to investigate former Vice President Biden."
4. "[W]hile executing my duties, I kept my colleagues at the State Department and National Security Council informed, and also briefed Congress, about my actions."
5. "I strongly supported the provision of U.S. security assistance, including lethal defensive weapons, to Ukraine throughout my tenure."

Read his opening remarks in full:

Go deeper: House committees release texts from former Ukraine envoy Kurt Volker