7pm (AEDT) – Stella Prize announced

Virtual Leaders Climate Summit hosted by US President Joe Biden begins (on until 23 April)

Earth Day

National Cabinet meets

Birthdays for Jack Nicholson (1937), John Waters (1946), Daniel Johns (1979), Amber Heard (1986)

Anniversary of:
• the signing of the Paris Agreement (2016)
• the birthdays of Immanuel Kant (1724), Vladimir Lenin (1870) Sidney Nolan (1917), Bettie Page (1923), and Glen Campbell (1936)
• the death of Richard Nixon, 37th President of the USA (1994)