News bites: Keystone XL concessions, Japanese ice walls, and more

The possible delay of a decision on the Keystone XL pipeline until next year could help pipeline opponents and enable President Obama to wrest climate concessions out of Canada, Bloomberg reports.

Japan will spend $470 million on an ice wall and other steps to stop reactor leaks at the Fukushima Dai-ichi nuclear plant, The Associated Press reports.

Oil output from the Organization of Petroleum Exporting Countries hit its lowest level since 2011 as Libyan production faltered, The Wall Street Journal reports.

China's new leaders are cracking down on alleged corruption at its state-owned oil company, the AP reports.

A study shows that climate change is moving some insects north to increasingly warming climes, The Guardian reports.