More and more evidence has accumulated which shows that changes in global and regional climate over the last 50 years are almost entirely due to human influence.
Ahead of the UN climate summit, we take stock of the world's best and worst performers on climate action - including some surprise success stories.
Water is crucial to the spread of malaria because mosquitoes breed and lay their eggs in or near bodies of water.
It remains to be seen how much longer the 'old men syndrome' will persist in Zimbabwe, Namibia and South Africa, despite growing frustration among the politically powerless.
Destroying the Amazon rainforest will accelerate climate change, harming millions. Can those responsible be prosecuted?
The new Greek government is putting in place new measures to stop the flow of refugees crossing the Aegan Sea.
Science fiction writing often serves as a thought experiment that explores shared and hidden beliefs whose material and political reverberations lie further in the future.
Prospective investors have the task of turning round an industry beset by technical challenges and incomplete planning
In our urban world, turning the makeshift and the informal into the livable and sustainable is our greatest challenge.
A challenge in eradicating polio comes from a version of the vaccine itself, which relies on live but attenuated virus. Rationally designing a new vaccine could help get rid of polio once and for all.
As a human evolution researcher, I was very excited to work with the creator of the Assassin's Creed games.
Societal pressures make it hard for people living in low-income areas to change their ways.
Banditry in northern Nigeria is making an already precarious security situation in the region worse.
In India's far northeast, tensions are beginning to emerge in the 22-year peace process to end India's longest insurgency.
Indonesia's top engineer and former president, Bacharuddin Jusuf Habibie or B.J. Habibie, who built the country's aircraft industry from scratch, died at 83 in Jakarta on Wednesday.
She left Sydney Ladies' College at 14 to marry an alcoholic future king. But the life of Queen Marau deserves to be written outside the shadow of her royal husband.
K2-18 b is now the exoplanet most likely to be habitable.
Amid New Year celebrations in Ethiopia, questions still linger around the possibility for sustained peace and stability.
Culturally, the joker turns socially significant places into spaces of carnival, revealing cracks within the social order. He is an enduring character – and a common figure in 2019.
Why do astronomers believe there's dark matter when it cannot be directly detected? Let's look at the evidence, and see what dark matter's presence means for our universe.