These two world leaders are laughing while the world burns up - and they don't look like stopping any time soon.
Campaigns against pollution that causes climate change often focus on reducing energy usage, when poor countries desperately need that energy to give their citizens freer and fuller lives. A new ethical framework for evaluating environmental issues is needed.
According to scientists, some fish could contain at least three times more mercury than 150 years ago due to pollution caused by human activity – the researchers hope that these findings will increase awareness of the harmful effects of mercury pollution.
The trend over the last few years has been for public transport authorities to accept that their data should be made public - while at the same time letting the private sector absorb the cost of making use of it.
China's rapid industrialisation has not been accompanied by a respect for the natural environment - but, as pollution problems become so severe that they can no longer be ignored, engineers are beginning to dream up ambitious solutions to problems created by ambitious modernity.
Is our relentless quest for economic growth killing the planet? Climate scientists have seen the data – and they are coming to some incendiary conclusions.
Monsanto has made its first acquisition of big data technology with the purchase of Climate Corporation.
While there are benefits to higher global temperatures, they are vastly outweighed by the costs to human life.
Clouds are essential as they reflect and scatter sunlight back into space - but nobody knows how hot the planet can become before the clouds no longer help us.
A burgeoning popular interest in China's ecological problems has led to citizens trying to win greater oversight of environmental decision-making.
While everyone loves Commander Chris Hadfield, it's Iowan James Hansen who really needs the attention.
The ETS is dead, long live climate change.
The Tree Health Diagnostic and Advisory Service has experienced over 4000 calls in the last six months about the chalara outbreak.
Permits to be backloaded, constraining supply.
"His broadest charge is that I consciously set out to sabotage the test. That is not so."
The UN has been making "venn diagrams". Oh dear.
A group of urban explorers broke into the disused National Renewable Energy Centre, near Newcastle.
We're saving money, but Ireland is getting the work.
Domestic cats are furry murderers, argues a New Zealand businessman who is spearheading a campaign to get his fellow Kiwis to give them up.
Yes: the Met Office really is quite good at its job.
The gas is there, but companies in the UK need more support to get it.
When "wind farms are dangerous" really just means "there are a lot of birds".
We must strike at the root of resource insecurity, by demateralising our economy where we can.
Cities are where the biggest experiments can take place; look to them to see the future of the UK.
Maybe we won't all die?
Supervolcanoes, ash clouds, supernovas, asteroids, climate chaos - take your pick.
Forget football - climate science is well worth a flutter, says Michael Brooks.
Unless we want to rehouse hundreds of thousands of people: yes.
There's a chicken/egg problem at work.
Businesses need to know what will happen in the future, writes RenewablesUK's Maf Smith. A government in turmoil can't provide that.