Columbia University

New tool makes online personal data more transparent

The web can be an opaque black box: it leverages our personal information without our knowledge or control. When, for instance, a user sees an ad about depression online, she may not realize that she is seeing it because ...

Aug 18, 2014
5 / 5 (2) 0

Climate change or public health: Which matters more?

Political leanings unquestionably influence how many people hear the conversation over climate change. The political polarization of the discussion has made it difficult to reach agreement on changes in environmental ...

Aug 04, 2014
3.1 / 5 (16) 9

What geology has to say about global warming

Last month I gave a public lecture entitled, "When Maine was California," to an audience in a small town in Maine. It drew parallels between California, today, and Maine, 400 million years ago, when similar ...

Jul 14, 2014
4.4 / 5 (33) 198

An overview of President Obama's climate proposal

The evidence of climate change is all around us – in the melting icecaps, rising global temperature, and the warming oceans. The International Energy Agency cautions that we need to reduce our consumption ...

Jun 26, 2014
3.3 / 5 (7) 0

Making progress on deforestation

In 2005, Brazil was losing more forest each year than any other country. The good news is that today, Brazil has reduced deforestation in the Amazon rainforest by 70 percent, according to a recent study. ...

Jun 24, 2014
4 / 5 (1) 0