No need for a bank: Just a smartphone and a blockchain.
Houman Haddad/UN World Food Program
Already becoming a darling of Wall Street, blockchain technology's biggest real benefits could come to the world's poorest people. Here's how.
How will the downgrade of Zika’s emergency status affect women like this 23-year-old Vietnamese woman and her baby born with microcephaly?
Vietnam News Agency/AAP
The World Health Organisation no longer sees Zika as a health emergency. But what does this downgrade mean for the health of mothers and babies?
Some changes to visa rules could make travel easier for scientists.
Scientists from the developing world perceive current visa rules as a major impediment to professional travel. They miss out on opportunities to collaborate globally.
Community activities in Kampala, Uganda, organised by SASA!
Many women across the world feel unable to refuse sex or request condom use. Empowering them could help bring down HIV rates.
Coal is a relatively cheap, abundant and well-established source of energy.
Millions of people live without access to electricity. Now it's a battle between coal and renewables to bring cheap power.
A woman in Burkina Faso collects firewood. Developing nations – and particularly women in these nations – are more vulnerable to climate change, and have less ability to adapt.
Climate justice is becoming an increasingly important part of climate action.
Major development banks are funding logging, mining and infrastructure projects that are having enormous impacts on nature. Here, forests are being razed along a newly constructed road in central Amazonia.
Big new investors such as the Asian Infrastructure Development Bank are key players in a worldwide infrastructure, and that could be bad news for the environment.
Countries such as Mauritania have contributed little to climate change, yet face the worst impacts such as crop failure.
The countries that have contributed the least to climate change will experience the worst of its effects.
A red-and-green macaw in the Amazon.
New data have revealed a disturbing trend in forest loss: the hearts of the world's forests are disappearing. To stop them bleeding out, we'll have to say 'no' to some developments.
A solar-powered microgrid in India.
Abbie Trayler-Smith / Panos Pictures / UK Department for International Development
Developing countries need technical and financial aid to begin the transition to low-carbon energy now, not just pledges to invest in energy R&D with payoffs decades from now.
Saleemul Huq (left) says the world’s vision should be to help everyone with climate change - even the very poorest.
A majority of countries want visionary action rather than pragmatism at the Paris climate talks, says the International Institute for Environment and Development's Saleemul Huq.
Erik De Castro/Reuters
A key sticking point may be resolved at the Paris climate talks: but at what cost to developing countries?
Developing countries can expect much better outcomes from the Paris climate change talks compared with Copenhagen six years ago.
African countries stand a good chance at COP21 of getting their ideas across. There will also be a better opportunity for these countries to access climate finance.
Australia could help Indonesia fight forest fires and combat climate change.
Australia's leadership on climate finance in developing nations could be an opportunity to improve climate diplomacy.
Deaton celebrates his award at Princeton on Monday.
The annual economics award recognises the value of micro analysis and good, old-fashioned legwork.
New Delhi’s Yamuna River, like much of India’s water, is polluted. The world urgently needs low-carbon ways to clean things up.
Much of the world still lacks access to proper sanitation and clean water - an issue that needs urgent action. But without low-carbon technologies, clean water could come at the expense of the climate.
Access to the grid has crowded out solar in some places in India.
DFID - UK Department for International Development/Flickr
Given existing technologies, expanding access to electricity almost always increases CO2 emissions. There are real trade-offs between addressing poverty and climate change.
The penny drops? A fight over UN tax oversight was overblown.
The near collapse of development talks in Ethiopia left campaigners angry, but they have more irons in the fire.
Saving lives one needle at a time.
Big pharma is finally starting to pay attention to the developing world. Here's why.
The old-fashioned way to send money home.
The World Bank recently forecast that remittances to developing countries will total more than US$450 billion this year, a bit bigger than Venezuela’s economy and more than double a decade a go. Given…