Science Friday: UC Davis researchers find that increased CO2 actually inhibits plant growth for plants in poor soil | Tai Chi linked to improved physical capacity in certain common long term conditions

First, Neil deGrasse Tyson tries to talk sense to climate change deniers

Plants use nitrogen from the atmosphere in unexpected ways. writes Kat Kerlin

Trees need nitrogen to grow, and they would prefer to get it from the soil. But in a pinch, when soils are poor, they will look to the atmosphere as sort of a nitrogen “food pantry,” grabbing it from the sky, according to a UC Davis study. However, amid rising levels of carbon dioxide, that back-up source of nitrogen is harder for the trees to access, limiting their growth.

The study, published in the journal Nature Scientific Reports, helps explain why rising CO2 levels are not accompanied by a boom in tree growth, as scientists formerly expected.

[…]

http://blogs.ucdavis.edu/egghead/2015/09/18/atmospheric-change-is-impacting-how-trees-grow/


Tai Chi linked to improved physical capacity in certain common long term conditions

The ancient Chinese exercise Tai Chi is linked to improved physical capacity among older adults with certain common long term conditions, indicates a pooled analysis of the available evidence, published online in the British Journal of Sports Medicine.

Among people with breast cancer, heart failure, osteoarthritis and chronic obstructive pulmonary disease (COPD), these improvements were not at the expense of worsening pain or breathlessness, the findings show.

Tai Chi consists of slow, gentle, flowing movements that aim to boost muscle power, balance, and posture. It also includes mindfulness, relaxation, and breath control.

[…]

http://www.sciencedaily.com/releases/2015/09/150918080616.htm

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s