The forecast for 2021 and 2022 EIA forecasts that some mandatory and voluntary travel restrictions will still be in place in the first half of 2021 amid a resurgence in COVID-19 cases as of late-2020, although the level of restrictions and their duration is highly uncertain.
In the past decade, researchers have begun to explore the possibility of using seismic energy generated by rumbling freight trains to image Earth's crust, where changes in the transmitted wave's velocity could indicate geological boundaries, faults, and mineral deposits.
If the entire global population were to switch to a vegan diet, some eight million lives could be saved by 2050, CO2 emissions would be cut by two-thirds, and savings in terms of healthcare and climate damage could amount to as much as $1.5trn.
2021's report finds that, by 2030, global greenhouse gas emissions will need to fall by 23% from 2019 levels to put the world on track to likely avoid 2 C warming above pre-industrial temperatures, by 33% to likely avoid 1.8 C warming, and by 56% to likely avoid 1.5 C warming.
There are political elections around the world in the year ahead which are at risk for disruption by inaccurate information spreading online, including in the United Kingdom, Germany, Japan, Israel, Iran, Peru and Ecuador.
In a downside scenario of persistently higher caseloads and delayed vaccination, global output in 2025 would be about 8% below earlier expectations and there would be a cumulative loss equivalent to 54% of 2019 global output.
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