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"Global peatlands cover only about three percent of global land area, but hold around 30 percent of the earth's soil organic carbon," said the study's author Zhuang Qianlai, a professor of earth, atmospheric and planetary sciences at Purdue University.

"For the benefit of our students, the Task Force appeals to all members of the community to join forces and bring these recommendations to fruition so that our culture of education, pedagogy and students' learning experiences can be enriched," she added.

"Focused", "formal" and "quiet", is his description of the delegation that had come to study the overall concept of a "free zone". He recalls that the officials seemed "indifferent" when they first arrived, and that there was "no big conversation".

"Greater emphasis on social finance and sustainable development will likely be one of the lasting outcomes of the coronavirus crisis," said Matthew Kuchtyak, an analyst with Moody's Investors Service.

"Global growth appears to be stabilizing, and is generally projected to pick up moderately later this year and into 2020," the G20 officials said in a joint communique, which was published on the website of Japan's Ministry of Finance.