New subsidies aim to drive demand for over 70 fuel-efficient models
But only if the government quickly clarifies its renewable energy policy
US intervenes to secure tougher commitment to phasing out "inefficient" fossil fuel subsidies
Reports claim the Carbon Trust and Technology Strategy Board will be axed as government seeks to raise £2bn to fund its new Green Investment Bank
Crucial wind, marine and carbon capture and storage projects rely on Regional Development Agency support
But draft communiqué also suggests plan to phase out fossil fuel subsidies will be watered down
Chris Huhne reveals the government is considering offering its proposed energy efficiency loan scheme to non-domestic properties
The speech may have been lacking in green substance, but the full budget report still contained a handful of important low carbon commitments
Climate change and green economy barely mentioned as chancellor delays reform to aviation tax and skates over plans for green bank
BusinessGreen.com runs down Osborne's green announcements as they happen