The document discusses science and technology trends for sustainable development since the 1992 Earth Summit. It finds that:
1) While technology progress has addressed many problems, it has also created new ones. Global technology progress has been too slow to compensate for increasing consumption.
2) Large emerging economies have become leaders in clean technology production, exports, and use. South-South technology transfers have increased but barriers remain.
3) Market-based policy instruments are increasingly emphasized over technology mandates and standards. However, price incentives alone have limitations for achieving sustainability goals.