Global Warming

http://www.world-science.net/othernews/090601-acidification

In­ten­sive fossil-fuel burn­ing and de­for­esta­t­ion over the last two cen­turies have in­creased at­mos­pher­ic car­bon diox­ode lev­els by al­most 40 per­cent, ac­cord­ing to Sar­ah Coo­ley and Scott Doney of the Woods Hole Oceanographic In­sti­tu­tion in Mas­sa­chu­setts.