We can and must govern climate engineering

We must--and we can--do better.

We Can and Must Understand Computers NOW

From the endlessly quotable Ted Nelson—whose neologisms pepper the language we use to understand the present, from “hypertext” to “visualization”—perhaps no phrase is better known than, “You Can and Must Understand Computers NOW.” It was emblazoned across the Computer Lib side of his 1974 Computer Lib/Dream Machines ( CL/DM ), the most infl uential book in the history of computational media. 1 ...

Antibiotic stewardship: Why we must, how we can.

Improving our antibiotic use is critical to the safety of our patients and the future of medicine. This can improve patient outcomes, save money, reduce resistance, and help prevent negative consequences such as Clostridium difficile infection. The US Centers for Disease Control and Prevention (CDC) is undertaking a nationwide effort to appropriately improve antibiotic use in inpatient and outp...

Opinion: Climate policymakers and assessments must get serious about climate engineering.

Climate engineering (CE)—the intentional, global-scale modification of the environment to help offset the effects of elevated greenhouse gases—appears able to reduce climate-change risks beyond what’s possible with mitigation and adaptation alone. Furthermore, the large-scale use of CE is probably essential for achieving prudent climate-change limits, including the Paris target of limiting the ...

Can we believe in high climate sensitivity?

The climate response to anthropogenic forcing has long been one of the dominant uncertainties in predicting future climate change [Houghton et al., 2001]. Many observationally-based estimates of climate sensitivity (S) have been presented in recent years, with most of them assigning significant probability to extremely high sensitivity, such as P (S > 6C) > 5%. However, closer examination revea...