Hannah Peters/Getty Images
Biofuels are heralded as a climate-friendly replacement of fossil fuels, but encouraging people to drive less and shift to other modes of transport would cut more emissions.
Ultra long-haul flights make it possible to go Sydney to London non-stop. But does the world need them, given they are more polluting and less efficient?
Harvesting soybeans in Mato Grosso, Brazil. Brazil exports soybeans and uses them domestically to make animal feed and biodiesel.
Paulo Fridman/Corbis via Getty Images
A new study finds that by 2030, less than one-third of the world’s major crop harvests will go directly to feed people.
An ethanol refinery in Chancellor, South Dakota.
AP Photo/Stephen Groves
Allowing the sale of gasoline that’s 15% ethanol year-round won’t have much impact on gas prices, but recent research shows that growing corn for fuel affects the climate – for the worse.
Surplus corn piled outside a farmer’s co-op storage facility in Paoli, Colorado.
Robert Nickelsberg/Getty Images
The US has required motor fuels to contain 10% biofuels since 2005. As this program nears a key milestone in 2022, farm advocates want to expand it while critics want to pare it back or repeal it.
A human rights-based approach to food production will have environmental, social and economic benefits.
The hidden costs of industrial food production include immense health and environmental impacts. These include millions of deaths, climate change, pollution and biodiversity loss.
How do we ensure solutions to climate change doesn’t make biodiversity loss worse? Fifty of the world’s leading researchers on biodiversity and climate have sought to answer this question.
Soot from aeroplane exhausts can linger in the atmosphere, seeding ice clouds which trap heat.
A complete switch to biofuels is neither feasible nor desirable, but they could replace some fossil fuels in transport and heating. If biofuels are produced from waste products, that’s even better.
Giant kelp (
Macrocystis pyrifera) is a potential energy crop.
Linking Tourism & Conservation/Flickr
Making biofuels from crops grown on land poses trade-offs between food and fuel. A new study looks offshore.
You can reduce your fuel consumption by 15-20% with improved driving habits alone – reducing emissions and saving money at the same time.
We analysed what the world’s top 58 airlines – such as American Airlines, British Airways and Qantas – are doing about climate change. Even the best airlines are not doing anywhere near enough.
Many vehicles can’t just be powered by battery.
We can’t decarbonise the whole transport sector with just batteries - sustainable fuels are essential.
A U.S. Navy F/A-18 Hornet launching from the USS Theodore Roosevelt on full afterburner.
Many current and former US military leaders call climate change a serious national security threat, but few of them mention the Defense Department’s big carbon footprint.
Photo Art Lucas/Shutterstock
We don’t notice the plant species we’re losing, but we won’t be able to ignore the effect of their loss on our supply of food and medicine.
A critically endangered Tapanuli orangutan from Sumatra, Indonesia.
Maxime Aliaga / Sumatran Orangutan Conservation Programme
Jokowi’s re-election may put the global biodiversity at risk
A fan of fuel blends that contain as much as 85 percent ethanol.
AP Photo/Jim Mone
Vehicles made before 2001 could suffer fuel system or engine damage if they’re run on E15.
A river dike on the Rio Nil near El Asintal, Guatemala.
(Consejo de Comunidades en Defensa del Ambiente del Municipio de El Asintal)
Increased use of renewable energies could help curb climate change, but the water required for their production has dispossessed rural Guatemalans.
The New Zealand government is introducing legislation to become zero-carbon by 2050, but will consider new permits for coal mining, offshore oil drilling and fracking on a case-by-case basis.
from shutter stock.com
Natural gas is touted as a “bridging fuel” to displace coal while moving to a low-carbon economy. In New Zealand, this is shortsighted and could lead to stranded assets and hold back renewables.
The potential clean energy sources are all around Sydney, just waiting to be harnessed.
Collage by Rocco Furfaro
Sun, wind, waste biomass, geothermal, tides and waves: all these energy sources in Sydney’s backyard add up to a zero-carbon energy solution for the city.