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Greenhouse gas levels highest in 3m years - Brisbane Times - Brisbane Times
Greenhouse gas levels highest in 3m years – Brisbane Times Brisbane Times Carbon dioxide concentrations in the Earth's atmosphere are on the cusp of reaching 400 parts per million for the first time in 3 million years. The day after day CO2 level, measured at the Mauna Loa Observatory in Hawaii, was 399.72 parts per million last Thursday, … and more »
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Greenhouse gas levels highest in 3m years – Brisbane Times – Brisbane Times
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