Countries, investors pledge billions for clean energy tech: http://bigstory.ap.org/0fd27fc7eead43e697b300a0c5153738&utm_source=android_app&utm_medium=blogger&utm_campaign=share Shared via AP Mobile. Download the app now: iOS - http://itunes.apple.com/us/app/ap-mobile/id284901416?mt=8 Android - https://play.google.com/store/apps/details?id=mnn.Android&referrer=utm_source=share_item&utm_medium=blogger