The Earth is on an unavoidable path towards a 1.5°C temperature rise by mid-century, says a new World Bank report. And as Alex Kirby reports, it could reach 4°C by 2100 unless immediate action is taken - with dire impacts on the planet's poorest people.
Despite promises to phase out subsidies to the coal, oil and gas industries, a new report G20 governments are still providing them with massive financial help, writes Alex Kirby. The UK alone is spending over £1.2 billion per year to support fossil fuel exploration and production at home and abroad.
With rising population and food demand far outstripping supply, the Sahel is vulnerable to a new humanitarian crisis, writes Alex Kirby. Rainfall is expected to increase with climate change, but higher temperatures will overwhelm the benefits.
Today's IPCC report provides all the reasons we need for serious climate action, writes Alex Kirby. But unless key polluting countries commit to deep cuts in emissions, and accept sanctions for non-compliance, there's little chance of any climate change agreement actually working.
A common marine worm key to the richness of many coastal ecosystems is being damaged by the increasing ocean acidification that was thought to imperil mainly shellfish and coral, writes Alex Kirby. It's an unwelcome sign of more unexpected ecological changes to come.
Scientists analysing more than three decades of weather data for the northern Alaska outpost of Barrow have recorded an astonishing 7°C temperature rise, writes Alex Kirby - and the likely cause is the decline in Arctic sea ice.
Deforestation in the Brazilian Amazon has been sharply reduced in recent years, writes Alex Kirby. But analysts say that palm oil and other cash crops are set for a major expansion, while high demand for beef, and administrative chaos, may undermine efforts to reform the ranching sector.
The plight of much of the world's wildlife seems 'worse than ever', writes Alex Kirby. To blame is unsustainable human consumption, which is driving habitat loss, climate change and the illegal wildlife trade.
New scientific evidence released today by the WMO shows the highest greenhouse gas concentrations on record, writes Alex Kirby, with 2012-2013 a record year for emissions. Meanwhile oceans are acidifying faster than at any time in the last 300 million years.
Networks of recycled smartphones are powering a crack down on illegal logging and poaching, writes Alex Kirby. The technology will help combat devastation of trees and wildlife in threatened habitats worldwide - beginning with Africa.
Coal consumption in China is likely to dwindle rapidly, writes Alex Kirby, leaving its own mining sector and foreign coal exporters in serious trouble. Australia and Indonesia are at greatest risk as China may soon stop importing any coal at all.
The East Antarctic ice sheet is thought by most scientists to be stable, reports Alex Kirby. But a German team says it has found how a large part of it could in time melt unstoppably, causing a long term 4 metre rise in global sea levels.
The latest IPCC report urges a dash for gas to allow us to reduce the burning of coal, including shale gas from fracking. But as Alex Kirby reports, their calculations appear to be based on an arithmetical flaw.
UK solar entrepreneur tells world leaders at Davos: fracking for shale oil and gas cannot help to avert a global energy crisis - and a global oil crisis could strike in 2015. Alex Kirby reports.
Scientists at the UK Met Office say all the evidence supports the theory that the exceptionally wet and stormy winter affecting much of Britain is caused at least in part by climate change.
