19/07/2016

Atrazine alternatives in sweet corn

Atrazine has been very good at killing weeds in corn fields for more than 50 years. But some of the properties that make it a successful herbicide, such as its persistence in the soil and ability to be transported in water, ...

Twitter eases process for verified accounts

Twitter said Tuesday it was streamlining the process for creating verified accounts, a move likely to boost the number of users with a "blue badge" icon.

2016 climate trends continue to break records

Two key climate change indicators—global surface temperatures and Arctic sea ice extent—have broken numerous records through the first half of 2016, according to NASA analyses of ground-based observations and satellite ...

Using urban pigeons to monitor lead pollution

Tom Lehrer sang about poisoning them, but those pigeons in the park might be a good way to detect lead and other toxic compounds in cities. A new study of pigeons in New York City shows that levels of lead in the birds track ...

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