Emperor penguins are threatened with eventual extinction due to global heating.

Facebook experimented with putting happier or sadder material into its useds' feeds, and found that had a tiny but measurable effect on their emotions.

I don't see an ethical problem in the experiment as such. It seems to me little different from trying different text on your web site's front page, except that they wrote a scientific paper about it.

However, Facebook's power to influence people does seem dangerous.

Here are many reasons not to be a used of Facebook.

The Chinese government has been compelled by events to recognize that industry without pollution control has poisoned lakes and soils with heavy metals that cause cancer.

Nonetheless, people who campaigned to stop this are still treated as enemies of the state.

ISIS has proclaimed a caliphate.

While directly this means nothing, it may convince lots of young foolish Muslims to support ISIS.

The biggest advantage of ISIS thus far seems to be that it is more cruel, bloody and unscrupulous than its rivals. I fear that this monstrous ideology will kill millions before it is stamped out. If you are a Muslim and you don't want your community destroyed by violent fanatics, you had better organize now to keep them out.

The three missing Israeli teenagers were killed and buried.

There is no indication of who killed them, but Netanyahu is using their deaths as an excuse to attack people all over the West Bank and Gaza.

Israel's reprisals have killed 6 Palestinians so far, and imprisoned 400 people. Israel has not bothered to charge them with any crime, and clearly has no evidence to relate them to the three murders. Clearly most of them were not involved.

Is Israel no better than Egypt? Al-Sisi at least has courts "convict" those he wishes to kill or imprison. The "trials" are not serious, but that provides an opportunity to pressure Egypt to do better. Israel does not even bother with trials.