Tracking pollutants to determine air quality across the world, Israeli startup BreezoMeter won a major bid to map air pollution in Paris.

Butterflies are arriving in great colorful swarms to Israel's Mediterranean city of Bat Yam, attracted to 150,000 new plants brought to town by the chief municipal landscaper, Eliav Hatuka. The beautiful insects are an indication of a healthy environment, since they avoid polluted places.