The most-read stories of 2020 take us from the depths of the mind to the edges of the universe.
The coronavirus pandemic caused the UN's annual climate conference to be postponed by a year, but it was also responsible for a drop in carbon emissions. Is it enough and will it last?
An international team of scientists have recalculated the curves used for radiocarbon dating – a key method for archaeology and environmental science – for the first time in seven years.
More than 70 of Australia's Laureate professors have signed a letter to the minister for education, Dan Tehan, outlining the flaws in the proposed university reforms.
New research has shed light on the role sea ice plays in managing atmospheric carbon dioxide levels.
Perhaps 2°C doesn't sound like much, but if you look through history, 2°C temperature changes have had huge effects on the planet and people.
Rising ocean temperatures drove the melting of Antarctic ice sheets and caused extreme sea level rise more than 100,000 years ago, a new international study led by UNSW Sydney shows.
Sydney has joined more than 600 local governments around the world – as well as the national governments of the UK and Canada – in putting the climate crisis at the heart of all policy decisions.
The move has been likened to putting the country on a "war footing", with climate and the environment at the very centre of all government policy, rather than being on the fringe of political decisions.
The loss of the Siberian unicorn shows just how vulnerable some animals can be to environmental change that can impact on their food supply.