Complex sentence: As members of the InterAcademy Panel, 105 science academies have issued a statement on ocean acidification recommending that by 2050, global emissions be reduced by at least 50%, compared to the 1990 level.
Split into simpler sentences: As members of the InterAcademy Panel, 105 science academies have issued a statement on ocean acidification. The statement recommends that by 2050, global emissions be reduced by at least 50%, compared to the 1990 level.