A new chapter in accountancy standards

New accounting rules in North America and Europe will lead to a revolutionary expansion in environmental disclosure. Paul Watchman and Angela Delfino explain

Stretch targets

German Chancellor Angela Merkel is fast cementing her position as Europe's greenest leader. At the EU's Spring Summit last month, she surprised many observers by securing a legally-binding commitment for the bloc to hit a 20% renewable energy target by 2020.

Dipping their toes in

Some see carbon as merely the first of a whole range of ­markets for ecosystem services. But, as Sissel Waage and Emma Stewart found, the corporate world is approaching with caution

Managing the mosaic

US environmental commodity markets are growing, but are fragmented, and likely to remain so in the near term. Success will require coming to terms with their complexity, argue Bob Shults and Reiner Musier

Time for a new energy paradigm

Martijn Wilder and James Cameron argue that, for renewable energy to play its full part in the battle against climate change, new ways of thinking about energy supply are required – supported by new approaches to policy

No time to wait

Attempts to forge a post-2012 climate agreement are grinding on – but rich ­countries must not wait to put the foundations of an agreement in place, argues Brice Lalonde

All along the chain

REC Group's integrated approach to the solar value chain could position it as the Standard Oil of the sector. Elizabeth Block reports

Raising the roof

For many customers, high up-front costs rule out installing solar PV systems. But, as Jess McCabe reports, innovative financing packages are changing the economics of solar energy

Warm glow for solar stocks?

The solar sector can expect continuing support from policy-makers, but non-financial barriers remain an often-overlooked issue, says Michael McNamara

Following through on climate promises

The TXU deal represents a sea-change in how Wall Street views carbon risk. But transparency, accountability and – ­ultimately – delivery are now crucial, say Jon Sohn and Smita Nakhooda