Complicating matters, the need for collective action to tackle such an urgent, existential global threat comes at a time of rising nationalism.

更复杂的是，在民族主义抬头之际，需要采取集体行动来应对这种紧迫的、关乎生死存亡的全球威胁。

Mr Rosenfeld thinks that, far from being a geopolitical liability at a time of rising Sino-Western tensions, the Chinese ties could be a commercial asset.

罗森菲尔德认为， 在中西方关系日益紧张之际， 与中国的关系绝非一种地缘政治负担，而是一种商业资产。

Fermentation tanks do not need to be pumped full of antibiotics and can be set up anywhere, handy at a time of rising worries about food security and climate change.

发酵罐不需要充满抗生素， 可以安装在任何地方，在人们对粮食安全和气候变化的担忧日益加剧的时候很方便。