by
Wisdom Land
August 17,
2018
from
YouTube Website
Time Lapse of 2 Plants
Growing
Isolated for 42 days in chambers of ambient and elevated CO2
concentrations, we periodically document the growth of cowpea plants
(Vigna unguiculata) via time-lapse photography
NASA says CO2 is making Earth greener.
Studies have shown that
increased concentrations of carbon dioxide increase photosynthesis,
spurring plant growth.
A quarter to half of Earth's vegetated lands has shown significant
greening over the last 35 years largely due to rising levels of
atmospheric carbon dioxide, according to a new study published in
the journal Nature Climate Change on April 25.
An international team of 32 authors from 24 institutions in eight
countries led the effort, which involved using,
-
satellite data from
NASA's Moderate Resolution Imaging Spectrometer
-
the National
Oceanic and Atmospheric Administration's Advanced Very High
Resolution Radiometer instruments,
...to help determine the leaf area
index, or amount of leaf cover, over the planet's vegetated regions.
The greening represents an increase in leaves on plants and trees
equivalent in area to two times the continental United States.
Green leaves use energy from sunlight through photosynthesis to
chemically combine carbon dioxide drawn in from the air with water
and nutrients tapped from the ground to produce sugars, which are
the main source of food, fiber and fuel for life on Earth.
Studies have shown that increased concentrations of carbon dioxide
increase photosynthesis, spurring plant growth.
Prominent scientist
William Happer tells Congress:
Earth is in a CO2 Famine
The
increase of CO2 is not a cause for alarm and will be good for
mankind.
Children should not be force-fed propaganda, masquerading
as science...
Happer, who has published over 200 peer-reviewed scientific papers,
made his remarks during today's Environment and Public Works Full
Committee Hearing entitled "Update on the Latest Global Warming
Science."
"Many people don't realize that over geological time, we're really
in a CO2 famine now.
Almost never has CO2 levels been as low as it
has been in the Holocene (geologic epoch) - 280 (parts per million - ppm)
- that's unheard of.
Most of the time [CO2 levels] have been at
least 1000 (ppm) and it's been quite higher than that," Happer told
the Senate Committee.
The
Center for the Study of Carbon Dioxide and Global Change was
created to disseminate factual reports and sound commentary on new
developments in the world-wide scientific quest to determine the
climatic and biological consequences of the ongoing rise in the
air's CO2 content.
It meets this objective through weekly online publication of its CO2
Science magazine, which contains editorials on topics of current
concern and mini-reviews of recently published peer-reviewed
scientific journal articles, books, and other educational materials.
In this endeavor, the Center attempts to separate reality from
rhetoric in the emotionally-charged debate that swirls around the
subject of,
carbon dioxide and global change...
In addition, to help students and teachers gain greater insight into
the biological aspects of this phenomenon, the Center maintains
on-line instructions on how to conduct CO2 enrichment and depletion
experiments in its Global Change Laboratory (located in its
Education Center section), which allow interested parties to conduct
similar studies in their own homes and classrooms.
|