Employees did not have to take a cut in salary, and nor did they have to work longer hours on the four days. Instead, their hours remain at 32-per-week, or eight-per-day.
An almost kilometre thick layer of clay or cap rock will lock away the CO2, just as it trapped oil and gas for millions of years, Schovsbo explains.
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Жители Санкт-Петербурга устроили «крысогон»17:52
Roman numerals: glyph reuse by design
The mission came hours after the first flight of the Blue Origin New Glenn rocket system, backed by Amazon boss Jeff Bezos.