How did Africa's grasslands get started?

Between 10 million and 6 million years ago, vegetation across much of the world underwent a transformation, as warmth-adapted grasses displaced previously dominant plants, shrubs and trees. The new grasses carried out the ...

Will rising carbon dioxide levels really boost plant growth?

Plants have become an unlikely subject of political debate. Many projections suggest that burning fossil fuels and the resulting climate change will make it harder to grow enough food for everyone in the coming decades. But ...

Hippo teeth reveal environmental change

Loss of megaherbivores such as elephants and hippos can allow woody plants and non-grassy herbs and flowering plants to encroach on grasslands in African national parks, according to a new University of Utah study, published ...

A step towards increasing crop productivity

(Phys.org) —A breakthrough in understanding the evolutionary pathways along which some crops have become significantly more productive as others may help scientists boost yields of some staple foodstuffs.

High CO2 spurs wetlands to absorb more carbon

(Phys.org) —Under elevated carbon dioxide levels, wetland plants can absorb up to 32 percent more carbon than they do at current levels, according to a 19-year study published in Global Change Biology from the Smithsonian ...

Scientists discover genetic key to efficient crops

(Phys.org)—With projections of 9.5 billion people by 2050, humankind faces the challenge of feeding modern diets to additional mouths while using the same amounts of water, fertilizer and arable land as today.

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