Wetlands are vital for human survival.
Water is the basic element for human survival.
Some researchers predict a massive decline in the viability of food crops critical for human survival.
Every day, hundreds of millions of people step outside into an environment that has become unsafe for human survival.
The water subsystem was the primary focus of this study because water is one of the most expensive and important resources for human survival.
They have often been regarded as resources for hobbyists, scientists, farmers and others rather than as a tool for human survival.
But until that day comes, we simply cannot any longer base the strategy for human survival on a cynical and self-interested illusion.
"The limiting factor for human survival here is temperature, and there's a lot of benefits with a warmer climate," Mr. Hoeg said.
From the personal experience of an average guy, I can vouch for the main ingredients needed for human survival: insulation, granola bars and coffee.
What did you learn about efforts to protect African environmental resources, especially water, land and other resources necessary for human survival?
Susan asserted that she herself would be "moorless" without work, but, as a biologist, she understands that grandmothers have been essential for human survival.
