This week's letters include a call to action from Beaches Go Green 2.0; opposition to proposed surf park; questions on U.S.

Green innovation is often seen as the key to sustainable growth. But, not all eco-technologies deliver the same results.

Solar battery hybrids are winning the battle on costs, market signals, speed of construction and customer needs, and are about to become a big thing in Australia.

Hive report shows financial savings, not climate concerns, are now the main reason to adopt low carbon technology ...