Downpours in eastern Australia this year have been good for crops and some dams. But when it comes to drought, Australia is not out of the woods yet.
Laut berwarna biru karena cara air menyerap cahaya, partikel-partikel dalam air menyebarkan cahaya, dan juga karena sebagian cahaya biru dari langit dipantulkan.
Foton mengalir dari matahari dan berinteraksi dengan semua materi di Bumi. Tergantung cahaya jatuh dimana, beberapa foton akan diserap dan beberapa akan terpantul.
Concentrations of carbon dioxide are now 147% above pre-industrial levels, according to a definitive report by the World Meteorological Organisation released today.
Dan Peled/AAP/Dave Hunt
Autumn may bring wetter-than-average conditions in parts of southern Australia, indicating a gradual easing of the drought in some areas.
Some parts of Australia have enjoyed excellent rainfall this year, but others have not. Drought relief is still slow and patchy.
It’s the first time since overlapping records began that Australia experienced both its lowest rainfall and highest temperatures in the same year.
The Bureau of Meterology says persistent drought and record temperatures were a major driver of Australia's fire activity, and the context for 2019 lies in the past three years of drought.
A hot and dry spring is leading into a hot and dry summer.
AAP Image/Dylan Coker
Australia is heading into a scorching summer, but the factors causing the hot and dry weather are expected to ease later in the season.
Last year fire storms raged across California. Similar conditions could become more likely for Australia.
Giovanni is interested in how meteorological processes operate at multiple spatial and temporal scales to control air pollution events, and how this influence is mediated by topographic variation and characteristics of the urban environment. His current r
Extreme fire risk will overlap with weather patterns to create fire tornadoes more often under climate change.
Australia will probably see fewer tropical cyclones reaching land this season.
AAP Image/Bureau of Meteorology
Southern and eastern Australia need to prepare for heatwaves and increased fire risk this summer, as forecasts predict hot, dry weather.
Firefighters battle bushfires in Angourie, northern New South Wales, on September 10 this year, marking another early start to the season.
Bureau of Meteorology researchers painstakingly analysed more than 40 years of data to work out exactly what is causing Australia's spring bushfire phenomenon.
Antarctic winds have a huge effect on weather in other places.
NASA Goddard Space Flight Center/Flickr
Each spring, winds circling the South Pole weaken. If they weaken enough, they can actually reverse – causing rapid warming.
Sydney’s water levels have fallen below 50%, triggering Stage 1 water restrictions.
AAP Image/Dean Lewins
Dry and warm conditions in winter are set to continue into spring, and the likely culprit is the positive Indian Ocean Dipole
Snow fell during the AFL match between the GWS Giants and the Hawthorn Hawks at the UNSW Canberra Oval.
AAP Image/Lukas Coch
Cold fronts swept south-eastern Australia, bringing snow and freezing temperatures. While snow is expected to decrease with climate change, cold snaps are likely to keep coming.
Cyclones Trevor and Veronica hit north Australia in 2019.
NASA Earth Observatory handout/EPA/AAP
In 1887 Queensland’s chief weatherman Clement Wragge began naming tropical cyclones, using names from the Greek alphabet, fabulous beasts and politicians who annoyed him.
The Cape Grim observatory, home of the ‘world’s cleanest air’… and rising greenhouse gases.
Carbon dioxide levels in the atmosphere are at 414 parts per million. But thanks to a recalculation of methane's warming power, the total amount of greenhouse gases is now equivalent to more than 500.
The sea is blue because of the way water absorbs light, the way particles in the water scatter light, and also because some of the blue light from the sky is reflected.
Photons stream from the sun and interact with all matter on Earth. Depending on what the light touches, some of the photons will get absorbed or soaked up. And some will bounce back.
Dirty water from Queensland’s historic flooding, triggered by weeks of exceptional monsoon rains earlier in the year.
The hottest Australian summer on record is ending, and it's likely we've got a warm, dry autumn to come.
Tree trunks, which were submersed when the dam was full, stand a the critically low dam in South Africa in 2018.
Australia's subtropical regions are drying, but if we can slow the global temperature rise then rainfall should increase again.
Sea ice responds to changes in winds and ocean currents, sometimes with origins thousands of kilometres away.
Antarctic sea ice cover fell to an all-time low recently and hasn't yet recovered. Why? The initial answers could lie in an unlikely place – the tropics.
Queensland’s ‘unprecedented’ bushfires were part of a year of extremes.
2018 was Australia’s third warmest year on record, as the NSW drought dragged into another year.