Russia has escalated attacks against Ukraine, launching a missile strike hitting a government building and shelling civilian areas in Kharkiv, reportedly targeting civilians with cluster and thermobaric bombs, and killing more than 70 Ukrainian soldiers at a military base in Okhtyrka. Meanwhile, the U.S. rejected Ukrainian President Zelensky’s demand for a no-fly zone over Ukraine, saying it could lead to a war between the U.S. and Russia.

We speak with climate author, journalist and movement leader Bill McKibben upon the release of the highly anticipated U.N. Intergovernmental Panel on Climate Change 2022 report, which finds the impacts of the climate crisis are already worse than predicted, driving poverty, hunger, disease and species extinction. McKibben also speaks about how global dependency on oil and gas empowers autocrats like President Vladimir Putin and is helping fuel the Russian war in Ukraine.

President Biden on Friday nominated federal Judge Ketanji Brown Jackson to the U.S. Supreme Court to fill Justice Stephen Breyer’s pending vacancy. If confirmed, she would be the first Black woman to serve as a Supreme Court justice.

Following a wave of peace rallies held across the globe this weekend, Ukrainian President Volodymyr Zelensky has agreed to diplomatic talks with Russia. This comes as Russian President Vladimir Putin placed Russia’s nuclear forces on high alert on Sunday, citing increasingly tightened international sanctions.

Ukraine is demanding an immediate ceasefire and for all Russian troops to leave the country as they report more than 350 Ukrainian civilians have so far been killed in President Putin’s invasion, which entered its fifth day Monday. The United Nations is also reporting more than 500,000 people have fled Ukraine and another 100,000 are internally displaced.