Permafrost is ground that is frozen year-round. In the Arctic, ice-rich permafrost soils can be up to 260 feet thick. Due to human-caused warming of the atmosphere from greenhouse gas emissions, a steady thawing of the permafrost is currently taking place where the upper layer of seasonally thawed soil is gradually getting thicker and reaching deeper into the ground.
PTELook at the text below. In 35 seconds, you must read this text aloud as naturally and clearly as possible. You have 35 seconds to read aloud.
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Beginning in 35 seconds.