Blooming algae is the reason behind green snow in Antarctica.
Thunberg said at the end of March that she had "likely" contracted the coronavirus, after experiencing several symptoms after a trip to central Europe.
Those residing in Antarctica have been screening new arrivals for coronavirus since earlier this year.
Australia has seen dozens of inquests into the causes of bushfires and steps that could be taken to mitigate them, with mixed results.
The report highlights the threat children face from harmful marketing of fat- and sugar-laden foods, alcohol and tobacco.
Amazon employees last month signed a blog criticising the online retail giant's climate policies and demanding it do more to tackle climate change.
Chief Minister of the Australian Capital Territory Andrew Barr said the measure was "effective now and will be in place for as long as Canberra is at risk".
The spat between the US Treasury Secretary Steven Mnuchin and Thunberg again highlighted the tensions over climate change at the World Economic Forum.
Unprecedented bushfires fuelled by climate change have killed at least 29 people and devastated vast swathes of the country since September.
Greta Thunberg was in the audience in the Swiss Alps to hear the typically bullish speech by Trump.
In Washington, the Senate was about to enter the heart of the impeachment trial threatening his presidency.
Business leaders will be keen to tout their awareness on climate change but are likely also to be concerned by the state of the global economy.
Australia has since October been overwhelmed by an unprecedented bushfire season made worse by climate change.
Prime Minister Scott Morrison, whose government has been criticised for its slow response to the emergency, pledged Aus$2 billion ($1.4 billion).
It is the latest emergency in Australia's devastating summer fire season, which has been turbocharged by a prolonged drought and climate change.
A total of 66 nations now have plans to be carbon-neutral by 2050.
Human-animal conflict highlighted again in drought-stricken Zambia as tourists left frozen in fear by three elephants raiding an open dining hall in a tourist lodge in search of food.
The main march will take place in Madrid on the sidelines of the UN climate conference.
Food and water scarcity caused by drought has resulted in an increase in human-animal conflict in Zambia.
How about eating a plate of E.Coli?
People gathered at the conservative Liberal party's offices to heed the call to action from 16-year-old climate change campaigner Greta Thunberg.
Methane emissions could be reduced substantially if farmers selectively reared "environmentally-friendly" cattle breeds.