
Plants
Some redwood leaves make food while others drink water
The two types of leaves grow at different heights in trees at dry versus wet areas. They may help redwoods adapt to climate change.
The two types of leaves grow at different heights in trees at dry versus wet areas. They may help redwoods adapt to climate change.
Phloem is tissue that delivers food, made in leaves during photosynthesis, to the rest of a plant.
They also could also help coastal residents mine fresh water from salty sources.
Heat-trapping gases from dead trees play an important role in the environmental impact of “ghost” forests.
Breathe in and out, that’s respiration. Have a cell break down sugars for energy, and that’s respiration too.
Plants can take in light, water and carbon dioxide, and send out sugar and oxygen. Here’s how it works.
Cinderella took a ride in a pumpkin coach. Though real pumpkins do get big enough, here’s why their ride would be uncomfortable at best.
As climate change spurs forest tree growth, it also shortens trees’ lives. That results in a quicker release of climate-warming carbon back into the atmosphere.
Photosynthesis turns sunlight into energy for plants. Scientists want to know more about it, imitate it — even improve it.
Levels of important nutrients are lower in crops exposed to high levels of carbon dioxide, a greenhouse gas. How high? Try levels expected to be typical 30 years from now.