Ever since the 1973 oil embargo, U.S. energy policy has sought to replace petroleum-based transportation fuels with alternatives. One prominent option is using biofuels, such as ethanol in place of gasoline and biodiesel instead of ordinary diesel.

The far-reaching Paris Agreement on tackling climate change is close to taking effect ? but how just how effective it may prove is far from clear.

Just as people pump greenhouse gases into the atmosphere by burning fossil fuels, the land also absorbs some of those emissions.

As the country pushes ahead with renewable energy goals, the challenges facing the grid are substantial, but not insurmountable, according to energy experts.

Each kilo (about 2 pounds, 3 ounces) of homegrown veggies can cut greenhouse gas emissions by two kilograms, research shows.

Earlier this summer, I found myself in the middle of a lively debate because of my work on climate change and the ethics of having children.

Energy experts say global investment patterns show a spectacular shift, with renewables on the rise and support for fossil fuels in sharp decline.

New analysis shows the cost of energy from renewables is already lower on average than from fossil fuels, and will soon be even cheaper.

The Aliso Canyon leak in California earlier this year focused public attention on methane emissions from the oil and gas industry.

Six years ago, Phoenix lay burning in the sun one day. It was 110 degrees Fahrenheit and I was the only person foolish enough to be out walking instead of moving by air-conditioned car. Arriving hot and parched at a bookstore, I opened the doors to be greeted by a blast of arctic air.

Power companies that take initiative now can position themselves for a bright future in tomorrow’s clean energy economy

Analysts say cuts in emissions will need to increase sixfold if the powerful G20 nations are to meet the climate challenge on reducing greenhouse gases.

What is so refreshing about the UN’s Sustainable Development Goals is that they recognise the inherent tension between economic development and the ecology of our planet.

Halting tree-felling and land clearance is not enough to save tropical rainforests without programmes of forest restoration in degraded areas, scientists say.

Since the 1950s, U.S. nuclear power has commanded immense taxpayer and customer subsidy based on promises of economic and environmental benefits. Many of these promises are unfulfilled, but new ones take their place. More subsidies follow.

Electrifying transportation is one of the most promising ways to significantly cut greenhouse gas emissions from vehicles, but so-called range anxiety – concern about being stranded with an uncharged car battery – remains a barrier to electric vehicle adoption.

In June, California utility Pacific Gas and Electric announced plans for phasing out its Diablo Canyon nuclear power plant, located on the central California coast.

Currently planned gas production expansion in Appalachia would make meeting U.S. climate goals impossible

Warning that humans may already have emitted enough carbon dioxide to undermine the 1.5°C temperature rise threshold agreed by 195 nations last December.

Pacific Gas and Electric (PG&E) recently started the process of shutting down the Diablo Canyon generation facility, the last active nuclear power plant in California.

Scientists believe that simple land management techniques can increase the rate at which carbon is absorbed from the atmosphere and stored in soils.

Degraded tropical forests throughout the world could be effectively restored by using a simple and inexpensive technique to speed up natural regeneration.

The problem the world faces is that many of the resources that are truly threatened are the renewable ones, not, as so often assumed, the non-renewables.