Facebook posts claiming that COVID-19 was "man-made" will no longer be removed, the social media giant announced Wednesday.
Why it matters: The lifting of the ban reflects a reinvigorated debate on the origins of the pandemic in recent days, following a Wall Street Journal report that three researchers at the Wuhan Institute of Virology were hospitalized in November 2019 after falling ill.
Indoor vertical farming, where crops are raised in automated stacks, often in or near cities, offers a way to sustainably meet the growing demand for food — if its energy demand can be reduced.
Why it matters: With the global population still rising — albeit more slowly — and more people moving to urban areas, the world needs ways to produce more food without clearing land for conventional farms.
Health and Human Services Secretary Xavier Becerra told a virtual World Health Assembly meeting Tuesday there needs to be a "transparent, science-based" follow-up investigation into the origins of the COVID-19 pandemic.
Why it matters: The original investigation by a team of scientists assembled by the World Health Organization and China's government returned inconclusive findings in March and was criticized by top officials including Secretary of State Antony Blinken.
