Sunlight greenhouse

The role of atmospheric CO2 in the greenhouse effect. Carbon dioxide is transparent to incoming sunlight, but it absorbs and re-emits a significant amount of the infrared radiation emitted by the Earth. This alters Earth s energy balance, raising its average temperature. 

Algae have the ability to directly utilize sunlight and carbon dioxide for photosynthesis. Due to this activity, cyanobacteria may help to solve a global environmental problem, the greenhouse effect, which increasingly threatens mankind at the beginning of the 21st century. 

Almost 80% of the sunlight that hits Venus is reflected back into space by the thick clouds surrounding the planet before it ever reaches the surface. Even so, temperatures at the surface of Venus are much hotter than those on Earth. However, this is not because Venus is closer to the Sun than the Earth. Scientists believe that the difference in the temperatures of the two planets is due to a runaway greenhouse effect caused by the large amount of sulfur dioxide in Venus atmosphere. 

Worms work best at temperatures between 50 and 77°F (12-25°C). They will survive considerably lower temperatures, but their rate of producing compost will slow down. Keep a worm bin where temperatures do not fluctuate widely—out of direct sunlight in summer. Bring the bin into a garage or warm greenhouse in winter, or insulate it well before the cold weather starts. A worm bin with an integral drainage sump can be kept indoors, in a shed or porch, for example, and moved out in the summer. Other bins may need to be set on bare soil to absorb any excess liquid produced. 

Cuttings taken from mother plants at Loogiee s greenhouse, rooted in water, and transplanted when the roots were 1/4 inch long. This plant was "hardened" to southern California weather contitions it was given 5 hours indirect sunlight and 3 hours direct... 

Greenhouses received unfiltered sunlight, and those which were... 

Absorption or reflection of infrared radiation serves to keep in heat. For example, the interior of a car or a greenhouse can get quite warm on a sunny day. This is called the greenhouse effect, and arises because glass is transparent to sunlight but absorbs and reflects much of the infrared radiation. In fact, semiconductor coatings for windows have recently become commercially available these coatings are transparent in the visible but reflect still more infrared radiation, and dramatically decrease heat loss (hence energy consumption) in homes. 

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