US citizens: tell Trump to release his tax returns.

The Democratic Party is illegally trying to give some primary voters in California "provisional ballots" that probably won't be counted.

The Australian government and an NGO dispute how to present how much coral in the Great Barrier Reef has died.

But they might agree that the deaths amount to 25% of the coral in the whole reef, concentrated closer to the equator.

After 20 years more heating, the subsequent el Niño event will leave much less coral alive.

Harvard is has made new investments in fracking companies in the past two years.

A 25-year plan to clean up the oil spills in the Niger delta has begun.

It is a lot cheaper to avoid polluting an area than to clean it up.