Christopher Joyce
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Almost 100 million years ago, when the South Atlantic Ocean was young, giant reptiles prowled the seas. Scientists have found a trove of these ancient creatures in the African nation of Angola. -
Archaeologists found thousands of drawings and stencils in a warren of limestone caves in remote mountains on the island of Borneo. But no one knew how old they were until now. -
The engineer views a landfill as a living ecosystem, and the plastic that clogs it as a serious threat that crowds out life and never goes away. Can we eliminate the waste before it smothers us? -
Biologists knew the sharks sometimes traveled from waters off Costa Rica south to the Galapagos Islands, but they'd never actually witnessed it. -
The two satellites, which are collectively called GRACE and will replace two retired probes, are one of the most important tools for understanding the effects of climate change. -
Plus-sized mama fish have a size advantage over their petite counterparts: They can produce more eggs, and those eggs produce larger fish. It's a reminder that protecting big fish matters. -
Turning food waste into fertilizer is popular in parts of Europe and is catching on in the U.S. But tiny plastics are also making their way into that fertilizer — and into the food chain.
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Scientists concede that oil and gas production is only partly to blame for the 3 percent surge in the greenhouse gas in the last decade. Obama tightened rules on the industry. Will Trump repeal them? -
Climate scientists say global emissions of carbon dioxide seem to have dipped a bit in 2015, though the world economy is still growing. China's reduced use of coal may be the main reason. -
Negotiators from nearly 200 countries have spent a week in Paris trying to come up with a new treaty to curb global warming. They've got the rest of this week to finish.
