Masao Yoshida, one of the Fukushima 50 who stayed behind at the earthquake and tsunami-struck power plant after the other employees evacuated, has just died from esophageal cancer.

More than two years after the nuclear disaster at Fukushima, Japan, the situation is worse than ever.

There are huge gains to be made by boosting efficiency. Even if we can never get to 100% because of the laws of physics, we could get much closer than we are now.

Nuclear power generation in the United States is falling. It plateaued between 2007 and 2010—before falling more than 4 percent over the last two years. Projections for 2013 show a further 1 percent drop.

On Monday (Sunday locally), Japan switched off the last of its operating nuclear reactors and became 100% nuclear-free.

Most of us alive today owe a debt to those who avoided nuclear war in years past, and sadly, there were many occasions when that was necessary.

Tons of jellyfish clog a water intake pipe at the Oskarshamn power plant in Sweden, forcing operators to shut down the reactor.

In China, wind power is leaving nuclear behind. Electricity output from China’s wind farms exceeded that from its nuclear plants for the first time in 2012, by a narrow margin. Then in 2013, wind pulled away—outdoing nuclear by 22 percent.

Nuclear power is so controversial; an engineer working on the Bruce Nuclear plant gives his point of view.

We still need a ton more renewable energy in order to combat climate change, but the good news is that renewable energy is picking up the pace.

If your price doesn't reflect the true cost of your product, then there's no such thing as a free market.

MIT design cuts fusion reactor down to a size that would be more cost effective and could be built in five years

The number of wolves alone around Chernobyl is more than 7 times greater than can be found in other nature reserves.

Mushrooms and game meat in European regions where Chernobyl fallout was most intense still have excess radiation, but Burgundy truffles get the green light; foodies rejoice.

It's a job even too tough for robots.

Earlier research found evidence of a wildlife wonderland at the disaster site, now the first camera study validates an abundance of wolves, boars, foxes and more.

The technology turns the problem of nuclear waste into a source of safe nuclear energy.

Can a rare metal travel without a passport?

Instead of building giant concrete buildings filled with uranium, why not build smaller energy-efficient buildings filled with people.

Researchers found that listening to the song was as good as midazolam in relieving anxiety before regional anaesthesia.

Celebrate this National Relaxation Day by doing a whole bunch of nothing too tasking.

I'm not quite sure, and the more I look, the more confused I get.

I slice and dice some recent posts on technology

A look at some recent posts on our sister site that might interest TreeHuggers.

And put away your phone if you are on vacation.

A roundup of some posts from our sister site.

Also a look at smart phones for boomers and for refugees, and making the Raspberry Pi higher.

A look at our favorite posts from our sister site.

A really interesting housing project and a look back at Canadian Thanksgiving

And a really nice solar decathlon winner.

and really, are Christmas lights screwing up your Wi-Fi?

And more blaming the millennials, robots and boomers and kitchens are exhuasting.

Why are our cities being designed around the needs of the trucks instead of vice versa?

and lessons in management from Renaissance Florence

And dancing robots!

also: recycling in crisis, how we will live in 100 years.

And a self-driving chair, a computer in your phone and learning to listen.

and the last job on earth.

A review of posts about aging baby boomers on the Mother Nature Network.

From mislabelling to plastic contamination, eating fish isn't as safe or healthy as most diners would like to believe.

These coolest of sea creatures know what they're doing.

This young startup uses cellular agriculture to grow fish out of water -- delicious, nutritious, and cruelty-free.

Why does this not surprise me?

Over the course of three months, previously clean mussels picked up a slew of contaminants from the waters of Puget Sound.

Tangled in fishing line with things looking grim, the story of Frito's rescue is inspiring all around.

The latest report on the state of the world's fisheries paints a depressing picture of the seafood industry.

Greenpeace's annual survey of national retailers' progress on sustainable seafood reveals the leaders and the losers.

Company higher-ups sold stocks while telling investors that everything was fine.

Scientists hope the technology that filmed it can make fishing more sustainable.

Nestle and Tesco are the latest members of a worldwide movement against abandoned fishing nets.