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Hace 11 horas · However, bicycles are not allowed at any time on the Green Line, or the Ashmont–Mattapan High-Speed Line segment of the Red Line. Buses equipped with bike racks at the front (including the Silver Line) may always accommodate bicycles, up to the capacity limit of the racks. The MBTA claims that 95% of its buses are now equipped with bike racks.
Hace 11 horas · Oceans have taken up almost 90% of the excess heat accumulated on Earth due to global warming. Climate change causes a drop in the ocean's pH value (called ocean acidification ): Time series of atmospheric CO 2 at Mauna Loa (in parts per million volume, ppmv; red), surface ocean pCO 2 (μatm; blue) and surface ocean pH (green) at Ocean Station ALOHA in the subtropical North Pacific Ocean.
