Global temperature records continue to break. This is how we monitor a warming Earth.

A world map shows surface air temperatures for June 2023 compared to established averages from 1991 to 2020.

World daily temperature records were broken this week, according to preliminary data. The modeling tools that produced these estimates can provide early warning of extreme heat events, even if they aren’t as accurate as the monthly and annual reports produced by major agencies, experts say. Who produces the data? The University of Maine has set … Read more

Harvard scientists monitor points of darkness for remote sensing and covert sensing applications

Metasurface that generated point singularities

From Kat J. McAlpine, Harvard John A. Paulson School of Engineering and Applied Sciences July 5, 2023 Harvard researchers have developed techniques to control dark spots in light using metasurfaces, opening up new possibilities in fields such as remote sensing, precision measurement, and covert sensing. The team created precise dark spots that can capture atoms … Read more