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Peter Hannam

Peter Hannam covers broad environmental issues ranging from climate change to renewable energy for Fairfax Media.

Sydney weather: facts and figures about the storm

Peter Hannam It was the biggest storm to rock Sydney and surrounding regions in more than a decade. As New South Wales tackles the aftermath, here are some facts and figures.

Sydney weather: Storm ebbs, making way for clean-up

One driver takes on the flooded car park at the Bellambi Pools while another uses the bike track.

Peter Hannam Sydney and the rest of the state's central coast will finally enjoy some benign weather for a few days at least, allowing residents and authorities to begin the massive clean-up.

Sydney weather: waves break records as erosion sees Narrabeen retreat 25 metres during storm

A TV crew doing a standup in front of the Wollongong harbour breakwall as large waves hit the coastline Tuesday.

Kate Aubusson and Peter Hannam Narrabeen has retreated 25 metres into the ocean as Sydney was buffeted by monster waves, the biggest since at least 1987.

Sydney weather: Chaos after the storm as tough commute expected

A woman walks in the CBD with a broken umbrella.

Peter Hannam The worst of Sydney's wettest and wildest couple of days in more than a decade may be over but minor flooding is likely to snarl the evening commute for many Sydneysiders.

Sydney weather: One more burst of storms and rain to endure

Cars make their way through the eastern suburbs on Wednesday.

Peter Hannam Sydney has one more "danger period" of heavy rains and winds to endure before the city finally gets a break in its wettest two-day soaking in 18 years climate

Storm of the century batters Sydney and the Hunter, leaving three dead and homes destroyed

Massive waves hit Lurline Bay, Sydney.

Nick Ralston, Peter Hannam, Lucy Cormack and Ella Rubeli The biggest storm to hit Sydney and the Hunter this century has battered the region, with at least three people dead,  dozens of others needing rescuing and entire homes washed away in...

Sydney weather: Another wild night predicted

Crews work to remove a tree fallen across King Street, Newcastle.

Peter Hannam Sydney is in the midst of its biggest storm this century, with the deep east coast low that battered the city on Monday night set to unleash a second evening of mayhem

Sydney weather: It's not a cyclone but it sure felt like one

Tree down at Curl Curl after severe winds.

Peter Hannam Perhaps it's no surprise that the massive storm that dumped the most rain on Sydney in a single day in more than 13 years, blew over huge trees and scoured beaches would in some parts of the world be...

Deep carbon emission cuts possible and inevitable, reports find

Solar energy

Peter Hannam Australia's abundance of renewable energy resources leaves it well-placed to exit fossil fuels altogether by 2050 at a manageable cost of the economy, according to an Australian National University...

Sydney weather: Wild weather with more to come

Pedestrians struggle against the weather on the corner of Liverpool and Elizabeth streets.

Kate Aubusson and Peter Hannam Sydney's commuters and students returning from holidays on Tuesday can expect another wintry battering with a second day of heavy rains and strong winds predicted for the city.

Sydney weather: Powerful winds, heavy rain sweep in

Wind and rain make for a wild start to the working week in Sydney.

Peter Hannam If you thought it was wet on the way into work this morning, it's likely you'll be in for a shock on the way home.

Hunter Valley village at risk as Rio Tinto scopes out Warkworth coalmine expansion

Alan Jones joins protesters against the Rio Tinto mine.

Peter Hannam Residents of Bulga in the upper Hunter Valley already threatened by the expansion of a nearby Rio Tinto coalmine may have even more to fear with the mining giant hiring consultants to survey an...

Sydney weather: Cold snap, rain to wash away autumn warmth

Last chance for leaf frolics: Anneka and Lydia  at Lawson in the Blue Mountains.

Peter Hannam Sydney's balmy mid-autumn will be a fading memory as a strong cold front moves in and a developing east coast low brings heavy rain over much of eastern NSW from early next week.

March global temperatures set new highs, US agency NOAA says

Record warmth even before an El Nino event settles in.

Peter Hannam Global temperatures continued to climb last month, with combined land and sea-surface temperatures setting fresh records amid prospects of more to come as El Nino conditions form in the Pacific, the...

AGL vows to exit coal-fired power plants as sun shines on solar

Coal's time is running out, AGL says.

Peter Hannam AGL, the country's largest greenhouse gas emitter, has vowed to close all its existing coal-fired power stations by 2050 and will not build or buy new conventional plants in the meantime.

Aerial photo of New Zealand: South-westerly winds create barrier of cloud around the country

Cloud shadow makes for a sunny day over New Zealand

Peter Hannam A striking satellite photograph of New Zealand shows how south-westerly winds transform the Land of the Long White Cloud into islands of sunshine surrounded by a barrier of cloud.

Sydney weather: Enjoy the warmth as cold snap is on the way

The mid-autumn warmth won't last much longer.

Peter Hannam Enjoy Sydney’s late burst of summer weather while it lasts because a cold, wet and windy burst is on the way.

Abbott government presses states to move on gas approvals

The Abbott government wants to see more CSG development.

Peter Hannam The Abbott government is stepping up pressure on the states to foster “the responsible development of the unconventional gas industry”, including coal seam gas.

AGL gas leak investigated in latest blow to coal seam gas plans

Protestors at AGL's AGM in Sydney last October.

Peter Hannam AGL’s coal seam gas operations in northern NSW have hit fresh troubles with the NSW Environment Protection Authority launching an investigation into a gas leak earlier this month.

Global temperature records keep melting as Japan declares March the hottest on record

Global temperatures are on the rise, particularly over large areas of the Pacific.

Peter Hannam Global temperature records continue to tumble with March coming in as the hottest in data going back to 1891, according to the Japan Meteorological Agency