We're not looking at whether this can be achieved within the planet's environmental limits.

我们不考虑这是否可以在地球的环境限制内实现。

And by studying how tardigrades survive prolonged exposure to the vacuum of outer space, scientists can generate clues about the environmental limits of life and how to safeguard astronauts.

通过研究缓步动物如何在长时间暴露在外太空真空中生存，科学家们可以产生有关生命环境极限以及如何保护宇航员的线索。

He told the BBC " We really found that a combination of measures would be needed to stay within environmental limits and those include changes towards healthier more plant-based diets" .

他告诉 BBC，“我们确实发现需要采取综合措施来保持在环境限制内，其中包括向更健康、更多植物性饮食的转变”。

We really found that a combination of measures would be needed to stay within environmental limits, and those include changes towards healthier, more plant-based diets, ambitious technological improvements and changes in farming management, and a reduction of food loss and waste.

我们发现真的需要在环境限度内采取一系列措施，而那些就包含有朝着更健康，更植物性饮食方向的改变，技术显著改进，以及改变耕作管理方式以及减少食物损失和浪费。