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In January 2021 scientists reported that reductions in air pollution due to worldwide COVID-19 lockdowns in 2020 were larger than previously estimated. It was concluded that, because of the impact of the COVID-19 pandemic on the climate during that year, a slight warming of Earth's climate during the year was seen instead of a slight cooling.
The Global Risks Report 2020 highlights environmental pressures more than any of its predecessors. The report identifies five of the top five risks by likelihood and four of the top five by impact as environmental risks (if "water crisis" is also counted as an environmental risk, rather than a "societal risk" as classified in the report). [1]
The second part of the report, a contribution of working group II (WGII), was published on 28 February 2022. Entitled Climate Change 2022: Impacts, Adaptation & Vulnerability, the full report is 3675 pages, plus a 37-page summary for policymakers. [29] It contains information on the impacts of climate change on nature and human activity. [30]
In addition, the COVID-19 pandemic "may add between 83 and 132 million people to the total number of undernourished in the world by the end of 2020 depending on the economic growth scenario". [37] The COVID-19 pandemic and lockdown has placed a huge amount of pressure on agricultural production, disrupted global value and supply chain.
The hunt for the origins of COVID-19 has gone dark in China, the victim of political infighting after a series of stalled and thwarted attempts to find the source of the virus that killed millions ...
The greatest threat to global public health is the continued failure of world leaders to keep the global temperature rise below 1.5 °C and to restore nature." [6] 30 September: UN Secretary-General António Guterres stated that "time is running out. Irreversible climate tipping points lie alarmingly close."
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As of 2023, the COVID-19 pandemic is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS CoV‑2). Its effect has been broad, affecting general society, the global economy, culture, ecology, politics, and other areas.