An ice-core record of hydrogen reveals that atmospheric levels vary in response to climate change and have increased drastically owing to human activity since the pre-industrial era. The apparent sensitivity of hydrogen cycling to environmental conditions should be considered when projecting the consequences of rising anthropogenic hydrogen emissions in a warming climate.
While insects are a novel food in some countries, tainted spices are a persistent global problem. For instance, fraudsters add widely available industrial dyes to paprika.
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Manjit Sangha, who worked seven days a week before her illness, returned home on a Sunday afternoon in July last year, feeling unwell.
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