World warned: change now or endanger food and climate

Humanity faces increasingly painful trade-offs between food security and rising temperatures within decades unless emissions are curbed and unsustainable farming and deforestation halted, a landmark climate assessment said ...

WhatsApp, security and spyware: what happened

Facebook-owned WhatsApp's revelation of a security flaw allowing hackers to inject spyware on smartphones raised fresh concerns about the security of the mobile ecosystem.

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