Africa’s tallest tree measuring 81m found on Mount Kilimanjaro
Mount Kilimanjaro is home to centuries-old giant trees around 30 storeys tall – a finding that may help protect the area from logging
First ever lightning-mapping satellite set for take off
The US's latest weather satellite, due to launch 19 November, will be the first to watch lightning continuously, as well as monitor the sun and space weather
80,000 reindeer have starved to death as Arctic sea ice retreats
Knock-on effects of weather have frozen snow in recent years, causing tens of thousands of reindeer to starve – and stoking fears of more famine to come this year
Food made from natural gas will soon feed farm animals – and us
The first big factory for turning natural gas directly into “dark food” for the animals we eat is about be built – a technology that could ease demand for land and water, but boost carbon emissions
Climate campaigners should have the right to sue governments
The Australian government wants to stop environmental groups using the courts to halt carbon-belching projects, but we all deserve to be heard, says Alice Klein
UK must face reality on climate impact of new Heathrow runway
We can’t pretend that emissions from aircraft are somebody else’s problem, says climate and energy expert Richard Black
Iceland drills hottest hole to tap into energy of molten magma
A new well tested in Iceland could boost geothermal energy production tenfold by exploiting 1000 °C magma steam deep below Earth’s surface
Islands to lose fresh water as rising seas sink them from within
As sea levels rise, islands can lose ground not only on their coasts, but also inland as lakes spring up – and cause drinking water to evaporate
Fossil fuel methane emissions are twice what is being reported
The fossil-fuel industry has been massively underestimating its methane emissions, but they’re not behind a recent global spike in these emissions
Hurricane Matthew devastates Haiti and heads towards Florida
The storm is being described as the largest humanitarian disaster in Haiti since the 2010 quake, killing at least 11 and leaving 10,000 in shelters