“You can see these gray wells — they’ve been abandoned,” said Rob Klenner, a former oil and gas engineer who is now GreenFire’s chief executive, pointing to a diagram of the site where ...

The other way to keep nitrogen in the ground is fertiliser. Keeping this cycle going in a sustained manner is what organic agriculture has been about for the last 11,000-odd years. Composting ...

The heliosphere grows and shrinks in response to changes in the sun’s activity levels over the course of an 11-year cycle ... of the sun,” Rankin says. A diagram of the heliosphere shows ...

This is especially true in the Arctic Ocean, where geographic and climatic factors contribute to a particularly complex nitrogen cycle. Arrigo et al. review current knowledge of how nitrogen ...

The processes by which nitrogen converts between its different chemical forms are described in the nitrogen cycle, which is the foundation of the biogeochemistry on Earth (Martínez-Espinosa et al., ...

Fertilizer that helps crops grow contains high levels of nitrogen and phosphorus ... we know we can’t make it go away completely.” A diagram of the “dead zone” in the Gulf of Mexico ...

Global biomedical giants are facing increasing public pressure to change the life cycle of their products ... a company vice president. Image A diagram of the hand-held device Mr. Brandell ...

But that nitrogen influx has disrupted Earth’s natural nitrogen cycle. Today, nitrogen pollution is causing overshoot of several planetary boundaries. Nitrates pollute waterways, causing ...

But how can agriculture affect the nitrogen cycle? How has it managed to reach a breaking point? To feed the world, isn’t intensive agriculture best? Let’s take stock of the situation.