Do volcanoes or an asteroid deserve blame for dinosaur extinction? Asteroid/comet likely reignited Indian volcanoes 66 million years ago, but their role in extinction unclear — ScienceDaily

Scientists have obtained more precise dates for the Deccan Traps volcanic lava flows, linking peak activity more closely to the asteroid or comet impact 66 million years ago and the coincident mass extinction. But if greenhouse gases emitted before the impact created a hothouse climate that set life up for a fall when the impact cooled the planet, those gases did not coincide with the largest lava flows from the Deccan Traps.

Source: Do volcanoes or an asteroid deserve blame for dinosaur extinction? Asteroid/comet likely reignited Indian volcanoes 66 million years ago, but their role in extinction unclear — ScienceDaily

Co-evolution: How does the need to sync development affect a system’s complexity? 

We are told that little is known about co-evolution and symbiosis, which prompts a question: How does the requirement for synchronization affect the overall complexity of the system?

Source: Co-evolution: How does the need to sync development affect a system’s complexity? | Uncommon Descent

Nations must triple efforts to reach 2°C target

Global emissions are on the rise as national commitments to combat climate change come up short. But surging momentum from the private sector and untapped potential from innovation and green-financing offer pathways to bridge the emissions gap. Those findings along with a sweeping review of climate action and the latest measurements of global emissions were presented by authors of the 2018 Emissions Gap Report.

Source: Nations must triple efforts to reach 2°C target, concludes annual review of global emissions, climate action — ScienceDaily