There's a new DVD about the most urgent catastrophic threat facing our planet. And it features a leader who is determined to do something about it.

As U.S. President Barack Obama says in the video: "This is the moment when we must renew the goal of a world without...

What if we took one of the most volatile regions on earth and made it a nuclear weapons free zone?

Good idea, isn't it.

So good, in fact, that the 189 countries party to the Non-Proliferation Treaty have already pledged to work for that goal. They did that...

There is history being made in London this week and it has nothing to do with the G-20's response to our economic difficulties.

The key players are U.S. President Barack Obama and Russian President Dmitri Medvedev.

The issues are security, international relations and the most immediate catastrophic threat of all,...

The White House rolls out the welcome mat for the nuclear abolition movement.

Sounds strange, doesn't it. But guess what?

The goal of nuclear disarmament is no longer just a dream. On the contrary, it's now official policy.

It's there on the White House website, in both...

Once upon a time, a very clumsy man leaned over the bath to get a polar bear (plastic) for his children.

His cellphone slipped from his shirt pocket -- the victim of gravity and poor pocket choice -- and plunged into the water.

The man quickly pulled it out. But...

The news is not just noteworthy, it could be a game-changer.

A London Times story by Tim Reid quotes a White House official saying :

We are going to re-engage Russia in a more traditional, legally binding arms reduction process... Nobody would be surprised if the number [of...

Can nuclear disarmament become a priority issue in Washington?

Absolutely.

And we can do it in less than 10 days.

Everyone understands the issue is important, but many people have believed it is impossible to make progress.

That's changing. Here's how we can do it.

The social networking...

As we rightfully concern ourselves with how to address this dysfunctional world economy of ours, let us remember this:

Nuclear war will ruin any economic recovery.

But this has been true for decades, you might say. Why worry?

Here is one reason -- from the Associated Press wire:

A new dawn of American leadership is at hand. . . Tonight we proved once more that the true strength of our nation comes not from our the might of our arms or the scale of our wealth, but from the enduring power of our ideals: democracy, liberty, opportunity, and...

Nuclear weapons pose the ultimate test of presidential judgment. Once launched, these weapons change world history forever.

More than 70 percent of Americans want to get rid of all nuclear weapons under a verifiable, internationally-agreed regime, according to a major poll last year. But even under the best...

It's enough to give you radioactive indigestion. While the United States deals with a potential economic meltdown, North Korea has decided to restart plutonium production at its five-megawatt nuclear reactor.

That's the word from the world's nuclear watchdog, the International Atomic Energy Agency. This was how Melissa Fleming,...

Google boss Eric Schmidt has identified what he believes are the world's two biggest challenges. And neither of them are named Microsoft.

In an interview on NPR's "All Things Considered" last week, he said:

"If you assume that the two largest issues in the world are the possibility of...

We must eliminate nuclear weapons before they eliminate us.

The sentiments of the Japanese people are clear on this matter. No country has suffered as Japan has from weapons of mass destruction. And no where are people as united in the conviction that nuclear weapons must never be used...

How can we store the sun's energy and use it later when the sun isn't shining? That has been one of the biggest challenges facing the widespread implementation of solar power.

Now it appears that an answer may come from trying to duplicate what plants do.

A Masschusetts Institute...

Senator Barack Obama spoke these words in Berlin:

This is the moment when we must renew the goal of a world without nuclear weapons. The two superpowers that faced each other across the wall of this city came too close too often to destroying all we have built and all...

The XIVth Dalai Lama has sent a message to the next occupant of the White House by signing an appeal that could fundamentally change the prospects for eliminating nuclear weapons world-wide.

It's called US Leadership for a Nuclear Weapons-Free World --...

"Nuclear power is among the surest ways to gain a clean, abundant, and stable energy supply." Those words came from John McCain' this week in Houston as he laid out his energy policy.

This week in Detroit, Barack Obama talked about making nuclear power "safe,"...

When we think about global issues like peace, climate change and hunger, sometimes it's easy to feel intimidated by the enormity of the task.

You know the chorus of futility: What can one person do? Why would the president listen to me? It's the way of the world. Nothing can...

Forget Iran. Forget North Korea. We may turn out to be our own worst nuclear enemy.

Defense Threat Reduction Agency (DTRA) Memo #1: Do not let security dudes play video games on their cell phones while guarding nuclear weapons.

Last August, airmen of the 5th Bomb Wing at Minot...

Maybe we should rename ourselves the United States of Cluster Bombs.

This week 111 nations gathered in Dublin to agree on a draft treaty banning these brutal weapons. But the US didn't even attend the talks. Neither did Russia, China, India, Pakistan or Israel. All these countries are big producers...