Deep-sea mining could wreck the last unexplored ecosystem on Earth
31 January 2019
As mining firms begin tests to pick up metal ores from the Pacific seabed, we need rules to protect this unusual ecosystem, says Olive Heffernan
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Sorry France, but fuel taxes are a bitter pill we must all swallow
6 December 2018
The reversal of France’s fuel tax sends a worrying message to world leaders meeting this week in Poland to firm up climate commitments, says Olive Heffernan
Towing icebergs to Cape Town is a poor way to halt water crisis
8 May 2018
Hauling chunks of polar ice to dry regions to provide fresh water sounds tempting but there are many reasons to reject it, says Olive Heffernan
Why the hockey stick graph will always be climate science's icon
23 April 2018
Two decades after it was first published, the chart linking carbon emissions and global warming is as relevant as ever, says Olive Heffernan
Why climate engineers are targeting Earth's last pristine spots
19 April 2018
Some of the last great wildernesses are being considered as likely candidates for geoengineering. It's a sad reflection of climate failings, says Olive Heffernan
Rock dusting on farms could cool the climate, so let's try it
21 February 2018
Crushed basalt applied to agricultural land could soak up billions of tons of carbon dioxide and boost crops. Let's put it to the test, says Olive Heffernan
Our best way to geoengineer the climate may well trash Earth
24 January 2018
A key plan to reduce global warming is to grow crops for fuel then capture and bury the carbon released when it's burned. This risks ecocide, says Olive Heffernan
Even a small cut in global warming will help slow sea level rise
12 January 2018
Limiting climate change to 1.5 °C instead of 2 °C, even if we overshoot at first and then bring temperatures back down, will ease the rise in sea levels
Tackle UK's killer toxic air before waging war on ocean plastic
5 January 2018
If only environment secretary Michael Gove's enthusiasm to curb plastic pollution extended to more pressing environmental issues, says Olive Heffernan
Faltering carbon capture needs more investment not doubt
11 December 2017
The world's first full-scale power plant carbon capture project has stumbled, but we can't let that risk the future of a technology we need, says Olive Heffernan
