When a critically endangered bird starts to lose its birdsong, conservationists know the species is in even more dire straits than its dwindling numbers suggest.

The City of Sydney will spend $377 million over the next decade to boost tree cover, adding about 700 trees a year to parks, lanes and roads.

One Liberal MP is calling for the governments to subsidise rather than tax electric vehicles as the industry ships its products to more welcoming markets.

The Berejiklian government has been accused of seeking to mask the effect of the 2019-2020 bushfires to protect the logging industry after it asked the main resources watchdog to prepare a secret study.

The government is preparing a “network management plan” for marine parks stretching from Byron Bay to Batemans Bay, stoking fears from advocates of both conservation and recreational fishing about the possible outcomes.