If you live in Melbourne, this season of renewal and regeneration can suck. These are the main reasons why.

Shark nets are back in the water for Sydney's beach but their effectiveness remains a contentious issue.

Prospects are improving for a wetter-than-average spring for coastal NSW but the shift away from the recent dry spell may not occur until later in the season, the Bureau of Meteorology says.

NSW has the most large-scale renewable energy projects under way in Australia, and lifted its share of clean energy markedly in the past year.

With no Noah's Ark to ferry these animals away, they're showing up in some unusual spots.

As the oil and gas capital of the world, Houston should have known storms like Harvey were coming.

New techniques to identify and reduce the sources of sediment blanketing parts of the Great Barrier Reef have landed Andrew Brooks and his team at Griffith University's this year's Eureka Prize for environmental research.

The spectacular Cliefden Caves in central west NSW have been granted state heritage listing, almost certainly sparing them from a dam proposed for the region.

A weak Clean Energy Target (CET) would shift the emissions reduction burden away from the electricity sector, undermine investor certainty, and potentially leave power stations pumping out pollution into the next century, according to analysis by RepuTex.

Sydney's main weather radar at Terrey Hills will be offline for more than a month for an upgrade ahead of this year's thunderstorm season.

Sydney is likely to post one of its coldest weeks of winter just as the season makes way for a burst of spring.

Australia produced enough renewable energy to power more than 70 per cent of households last financial year, new data shows, but advocates warn the booming industry will flounder unless the Turnbull government commits to a clean energy target.

At least eight people were killed and many are still missing after one of the strongest typhoons on record barrelled into southern Chinese territory of Macau.

Although the gift may have seemed like an appropriate gesture, it has been criticised by animal rights campaigners.

The unusually warm and dry winter across much of NSW has prompted the Rural Fire Service to bring forward the official start to the fire season for nine local government areas including the Blue Mountains.

The paucity of independent monitoring of waste water from coal mines in NSW is leaving communities exposed to decades of pollution, long after mining operations have ceased, Ian Wright, a leading water ecologist, said.

Coal mining in Sydney's catchment is having a "cumulative and possibly accelerated" impact on water flows but its full effect is unknown because of a lack of data and monitoring.

Weather agencies including Australia's must step up cooperation to close a "widening gap in capacity" with developing nations, with the urgency of action increasing as the planet heats up, David Grimes, president of the World Meteorological Organization, says.

There's more to protecting yourself than wearing an ice cream bucket on your head.

Damaging winds are forecast to batter Sydney well into the weekend, keeping emergency crews busy clearing downed trees and powerlines, and restoring electricity to affected homes and businesses.

Cyclonic-strength wind gusts have hammered Sydney and most of eastern NSW, disrupting air travel and stranding trains on the Sydney Harbour Bridge.

Cyclonic-strength wind gusts have hammered Sydney and most of eastern NSW, disrupting air travel and stranding trains on the Sydney Harbour Bridge.

​The world's largest nesting spot for endangered green sea turtles will be made over to stop baby turtles drowning and adults dying from heat exhaustion.

Australia's biggest coal-fired power stations are permitted to dump toxic pollutants on nearby populations far in excess of overseas counterparts, even those in China, a survey by Environmental Justice Australia reveals.

A thick blanket of smoke has left Sydneysiders breathing "very poor" air, with more hazard burns expected to keep the haze around for another day.