Macau Daily Times: China said on yesterday its battle to rein in soaring greenhouse gas emissions has received a boost from an unexpected source — the nation’s controversial family-planning policy. Since its adoption in the late 1970s, the so-called "one-child" policy has averted the births of more than 300 million people, who would have emitted an additional 1.3 billion tonnes of carbon dioxide per year, a government environment report said. If true, the figure would represent more …