greenhouse heating

luxtempestas  asked:

do you have any iconic greenhouse customer service stories

Mid April in North Dakota. A customer comes up sternly demanding to see our tomato plants. I tell him truthfully that the only tomato plants we have are the one or two baby ones on the cart. He demands to know why. I answer plainly, “because it’s still too early,” to which he answered “no its not!”

Three days before this interaction there was a blizzard bad enough that I was a half hour late for work due to bad roads. When I reminded him of this he insisted we could grow them inside.

Which, yes dear customer, WE can, because we have a large heated greenhouse where even dainty tropicals are immune from killing frost. YOU dear customer, probably dont have one of those, and if I sold you a tomato plant you would probably put it outside, where it would freeze to death as soon as the sun went down, and then you would try and return a dead plant to us when it “unexpectedly” died, because APRIL IS STILL TOO EARLY FOR TOMATO PLANTS IN A ZONE FOUR YOU FUCKING NUMBNUTS, SHOW ME THE FUCKIN SIBERIAN TOMATO PLANT THAT CLINGS TO LIFE IN A FOSSILIZED WOOLY MAMMOTHS PERMAFROZEN ASSHOLE AND THEN YOU CAN BITCH TO ME ABOUT WHEN ITS TOO EARLY

German vocabulary list Environment & Pollution
  • der saure Regen (acid rain)
  • die Atmosphäre (atmosphere)
  • die Biosphäre (biosphere)
  • das Gleichgewicht (balance)
  • die Artenvielfalt (biodiversity)
  • der Kohlenstoff (carbon)
  • das Kohlendioxid (carbon dioxide)
  • die Katastrophe (catastrophe)
  • das Klima (climate)
  • der Klimawandel (climate change)
  • der Schmutz (dirt)
  • der Staub (dust)
  • die Dürre (drought)
  • die Erde (earth)
  • das Erdbeben (earthquake)
  • die Ökologie (ecology)
  • das Ökosystem (ecosystem)
  • die Energiequelle (energy source)
  • die Umwelt (environment)
  • die Evolution (evolution)
  • das Abgas (exhaust gas)
  • die Hungersnot (famine)
  • das Düngemittel (fertilizer)
  • die Erderwärmung (global warming)
  • der Treibhauseffekt (greenhouse effect)
  • das Treibhausgas (greenhouse gas)
  • die Hitzewelle (heat wave)
  • das Erdgas (natural gas)
  • die Atomkatastrophe (nuclear disaster)
  • die Kernenergie (nuclear energy)
  • der Sauerstoff (oxygen)
  • das Ozonloch (ozone hole)
  • die Ozonschicht (ozone layer)
  • das Gift (poison)
  • die Verschmutzung (pollution)
  • das Kraftwerk (power station)
  • der Regenwald (rainforest)
  • der Meeresspiegel (sea level)
  • der Giftmüll (toxic waste)
  • die Windenergie (wind energy)
  • bedrohen (to menace)
  • beschädigen (to harm)
  • durchsickern (to leak)
  • schützen (to protect)
  • verschmutzen (to pollute)
  • verseuchen (to contaminate)
  • verschwinden (to disappear)
  • wiederverwerten (to recycle)
  • zerstören (to destroy)

I slipped up.
Candlewax wings can’t hold a flame to the sun, but I was so close this time.
Or maybe I was no where near, perspective distorted by the dizzying hight.
Maybe I’m frailer than I’d thought, and these ghosts glass ceiling the sky, greenhouse the heat, and prism the array of colors.
Mistaking all the colored sands of the wasteland for blooms because I could taste a hint of spring on the desert air.
Very few people ever get the full picture, not that I ever hide anything specific.
I am a king, a god, a conqueror.
I am a skeleton, all ribs and no skull or spine, hardly a tongue and teeth.
I’ve been too heavy to fly or swim, but I will till the earth with my hands and bake in the sun, little mouse.

j-g-omena  asked:

So, isn't the global warming happening mainly because of the cattle's emisions? Being vegan woudn't help to reduce? I'm not vegan by the way. I'm saying that because I'm a biology student and my uni professor said that everybody becoming vegetarians/vegans would help the environment.

Um no… global warming is caused by the greenhouse effect, in which heat is trapped by the atmosphere due to certain gases such as: 

  • Water vapor 
  • Carbon dioxide - produced from  deforestation and burning of fossil fuels
  • Methane (this is the least abunant in the landfills, agriculture (especially in cultivating rice), ruminant digestion and manure 
  • Nitrous oxide - produced from soil cultivation practices; organic fertilizers, fossil fuel combustion, nitric acid production, biomass burning.
  • Chlorofluorocarbons

Of these methane (which is produced partly from agricultural practices) is the least abundant in the atmosphere. The biggest cause of gas emissions and global warming is burning fossil fuels (coal and oil) to produce CO2. [x] [x] [x]

While beef production does have an environmental effect, going vegetarian/vegan would be just as bad for the environment. The solution is not to stop eating all meat all together because some of our sources of meat is bad for the environment. 

The solution is to decrease consumption of beef in western countries, as well as reduce red meat in general and look to alternative sources of protein and meat, as well as improving agricultural processes to be more sustainable. 

There are some scientific papers that would argue going vegetarian / vegan will save the environment but these papers often fail to look at the bigger picture, they fail to see the ecological effects it would have on the world. Majority of scientific papers however do not advocate for the whole world turning vegan because they understand the negative effects this would have. These papers have much more evidence + discussion for me then the few papers arguing veganism. 

This is your yearly reminder to not leave dogs in the car

No, not even if the windows are cracked. Yesterday was June 1 and we had our first dog of the year die of heat stroke at work. He was left in the car too long. It was terrible and preventable and nobody should have to go through that. Even five minutes is too long. It is a greenhouse in cars, heat builds fast.

WHAT LIES BENEATH: VENUS’ SURFACE REVEALED THROUGH THE CLOUDS

** Synopsis: Using observations from ESA’s Venus Express satellite, scientists have shown for the first time how weather patterns seen in Venus’ thick cloud layers are directly linked to the topography of the surface below. Rather than acting as a barrier to our observations, Venus’ clouds may offer insight into what lies beneath. **

Venus is famously hot, due to an extreme greenhouse effect which heats its surface to temperatures as high as 450 degrees Celsius. The climate at the surface is oppressive; as well as being hot, the surface environment is dimly lit, due to a thick blanket of cloud which completely envelops the planet. Ground-level winds are slow, pushing their way across the planet at painstaking speeds of about 1 metre per second – no faster than a gentle stroll.

However, that is not what we see when we observe our sister planet from above. Instead, we spy a smooth, bright covering of cloud. This cloud forms a 20-km-thick layer that sits between 50 and 70 km above the surface and is thus far colder than below, with typical temperatures of about -70 degrees Celsius – similar to temperatures found at the cloud-tops of Earth. The upper cloud layer also hosts more extreme weather, with winds that blow hundreds of times faster than those on the surface (and faster than Venus itself rotates, a phenomenon dubbed ‘super-rotation’).

While these clouds have traditionally blocked our view of Venus’ surface, meaning we can only peer beneath using radar or infrared light, they may actually hold the key to exploring some of Venus’ secrets. Scientists suspected the weather patterns rippling across the cloud-tops to be influenced by the topography of the terrain below. They have found hints of this in the past, but did not have a complete picture of how this may work – until now.

Scientists using observations from ESA’s Venus Express satellite have now greatly improved our climate map of Venus by exploring three aspects of the planet’s cloudy weather: how quickly winds on Venus circulate, how much water is locked up within the clouds, and how bright these clouds are across the spectrum (specifically in ultraviolet light).

“Our results showed that all of these aspects – the winds, the water content, and the cloud composition – are somehow connected to the properties of Venus’ surface itself,” says Jean-Loup Bertaux of LATMOS (Laboratoire Atmosphères, Milieux, Observations Spatiales) near Versailles, France, and lead author of the new Venus Express study. “We used observations from Venus Express spanning a period of six years, from 2006 to 2012, which allowed us to study the planet’s longer-term weather patterns.”

Although Venus is very dry by Earth standards, its atmosphere does contain some water in the form of vapour, particularly beneath its cloud layer. Bertaux and colleagues studied Venus’ cloud-tops in the infrared part of the spectrum, allowing them to pick up on the absorption of sunlight by water vapour and detect how much was present in each location at cloud-top level (70 km altitude).

They found one particular area of cloud, near Venus’ equator, to be hoarding more water vapour than its surroundings. This ‘damp’ region was located just above a 4,500-metre-altitude mountain range named Aphrodite Terra. This phenomenon appears to be caused by water-rich air from the lower atmosphere being forced upwards above the Aphrodite Terra mountains, leading researchers to nickname this feature the ‘fountain of Aphrodite.’

“This ‘fountain’ was locked up within a swirl of clouds that were flowing downstream, moving from east to west across Venus,” says co-author Wojciech Markiewicz of the Max-Planck Institute for solar system Research in Göttingen, Germany. “Our first question was, ‘Why?’ Why is all this water locked up in this one spot?”

In parallel, the scientists used Venus Express to observe the clouds in ultraviolet light, and to track their speeds. They found the clouds downstream of the ‘fountain’ to reflect less ultraviolet light than elsewhere, and the winds above the mountainous Aphrodite Terra region to be some 18 percent slower than in surrounding regions.

All three of these factors can be explained by one single mechanism caused by Venus’ thick atmosphere, propose Bertaux and colleagues.

“When winds push their way slowly across the mountainous slopes on the surface they generate something known as gravity waves,” adds Bertaux. “Despite the name, these have nothing to do with gravitational waves, which are ripples in space-time – instead, gravity waves are an atmospheric phenomenon we often see in mountainous parts of Earth’s surface. Crudely speaking, they form when air ripples over bumpy surfaces. The waves then propagate vertically upwards, growing larger and larger in amplitude until they break just below the cloud-top, like sea waves on a shoreline.”

As the waves break, they push back against the fast-moving high-altitude winds and slow them down, meaning that winds above Venus’ Aphrodite highlands are persistently slower than elsewhere.

However, these winds re-accelerate to their usual speeds downstream of Aphrodite Terra – and this motion acts as an air pump. The wind circulation creates an upwards motion in Venus’ atmosphere that carries water-rich air and ultraviolet-dark material up from below the cloud-tops, bringing it to the surface of the cloud layer and creating both the observed ‘fountain’ and an extended downwind plume of vapour.

“We’ve known for decades that Venus’ atmosphere contains a mysterious ultraviolet absorber, but we still don’t know its identity,” says Bertaux. “This finding helps us understand a bit more about it and its behaviour – for example, that it’s produced beneath the cloud-tops, and that ultraviolet-dark material is forced upwards through Venus’ cloud-tops by wind circulation.”

Scientists already suspected that there were ascending motions in Venus’ atmosphere all along the equator, caused by the higher levels of solar heating. This finding reveals that the amount of water and ultraviolet-dark material found in Venus’ clouds is also strongly enhanced at particular places around the planet’s equator. “This is caused by the mountains way down on Venus’ surface, which trigger rising waves and circulating winds that dredge up material from below,” says Markiewicz.

As well as helping us understand more about Venus, the finding that surface topography can significantly affect atmospheric circulation has consequences for our understanding of planetary super-rotation, and of climate in general.

“This certainly challenges our current general circulation models,” says Håkan Svedhem, ESA Project Scientist for Venus Express. “While our models do acknowledge a connection between topography and climate, they don’t usually produce persistent weather patterns connected to topographical surface features. This is the first time that this connection has been shown clearly on Venus – it’s a major result.”

Venus Express was in operation at Venus from 2006 until 2014, when its mission concluded and the spacecraft began its descent through Venus’ atmosphere.

The study by Bertaux and colleagues made use of several years of Venus Express observations gathered by the Venus Monitoring Camera (VMC) – to explore the wind speeds and ultraviolet brightness of the clouds – and by the SPICAV (Spectroscopy for Investigation of Characteristics of the Atmosphere of Venus) spectrometer – to study the amount of water vapour contained within the clouds.

“This research wouldn’t have been possible without Venus Express’ reliable and long-term monitoring of the planet across multiple parts of the spectrum. The data used in this study were collected over many years,” adds Svedhem. “Crucially, knowing more about Venus’ circulation patterns may help us to constrain the identity of the planet’s mysterious ultraviolet absorber, so we can understand more about the planet’s atmosphere and climate as a whole.”

WHAT IS AIR
  • jay: u breathe it like *HUUUUUUUEHHH* *AHHHHHHHH*
  • kai: why are u asking me this hard questions;;;;
  • cole: im sorry i don't do memes
  • lloyd: im like 2 i never even learned how to read
  • zane: The atmosphere of Earth is the layer of gases surrounding the planet Earth that is retained by Earth's gravity. The atmosphere protects life on Earth by absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation). The common name air is given to the atmospheric gases used in breathing and photosynthesis. By volume, dry air contains 78.09% nitrogen, 20.95% oxygen,[1] 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere. Air content and atmospheric pressure vary at different layers, and air suitable for the survival of terrestrial plants and terrestrial animals is found only in Earth's troposphere and artificial atmospheres.
  • pixal: fucking look it up yourself im not siri
10

Took some photos from my daily visit to the university greenhouses, they are definitely my happy place on campus, sans the woods. They are full of some of the most wonderful plants, from our very own giant cluster of banana, and 10’ tall euphorbia, to tiny little corpse flowers and microscopic orchids. 

“Extreme electric storm”, taken in Johannesburg, South Africa by Alexius van der Westhuizen, is one of the winning photos of the World Meteorological Organization’s photo contest.

The theme of the contest – ““Hotter, drier, wetter. Face the Future” – was chosen to illustrate the reality of climate change. As a result of heat-trapping greenhouse gases in our atmosphere, land and sea surface temperatures are rising. The frequency and intensity of extreme events like heatwaves and heavy rainfall is increasing. Without urgent action to cut carbon dioxide emissions, this trend will accelerate.

Seeing El Niño…From Space

First, What is El Niño?

This irregularly occurring weather phenomenon is created through an abnormality in wind and ocean circulation. When it originates in the equatorial Pacific Ocean. El Niño has wide-reaching effects. In a global context, it affects rainfall, ocean productivity, atmospheric gases and winds across continents. At a local level, it influences water supplies, fishing industries and food sources.

What About This Year’s El Niño

This winter, weather patterns may be fairly different than what is typical — all because of unusually warm ocean water in the east equatorial Pacific, aka El Niño. California is expected to get more rain while Australia is expected to get less. Since this El Niño began last summer, the Pacific Ocean has already experienced an increase in tropical storms and a decrease in phytoplankton.

How Do We See El Niño?

Here are some of El Niño’s key impacts and how we study them from space:

Rainfall: 

El Niño often spurs a change in rainfall patterns that can lead to major flooding, landslides and droughts across the globe.

How We Study It: Our Global Precipitation Measurement mission (GPM), tracks precipitation worldwide and creates global precipitation maps updated every half-hour using data from a host of satellites. Scientists can then use the data to study changes in rain and snow patterns. This gives us a better understanding of Earth’s climate and weather systems.

Hurricanes:

El Niño also influences the formation of tropical storms. El Niño events are associated with fewer hurricanes in the Atlantic, but more hurricanes and typhoons in the Pacific.

How We Study It: We have a suite of instruments in space that can study various aspects of storms, such as rainfall activity, cloud heights, surface wind speed and ocean heat.

Ocean Ecology:

While El Niño affects land, it also impacts the marine food web, which can be seen in the color of the ocean. The hue of the water is influenced by the presence of tiny plants, sediments and colored dissolved organic material. During El Niño conditions, upwelling is suppressed and the deep, nutrient-rich waters aren’t able to reach the surface, causing less phytoplankton productivity. With less food, the fish population declines, severely affecting fishing industries.

How We Study It: Our satellites measure the color of the ocean to derive surface chlorophyll, a pigment in phytoplankton, and observe lower total chlorophyll amounts during El Niño events in the equatorial Pacific Ocean.

Ozone:

El Niño also influences ozone — a compound that plays an important role in the Earth system and human health. When El Niño occurs, there is a substantial change in the major east-west tropical circulation, causing a significant redistribution of atmospheric gases like ozone.

How We Study It: Our Aura satellite is used to measure ozone concentrations in the upper layer of the atmosphere. With more than a decade of Aura data, researchers are able to separate the response of ozone concentrations to an El Niño from its response to change sin human activity, such as manmade fires.

Fires:

El Niño conditions shift patters of rainfall and fire across the tropics. During El Niño years, the number and intensity of fires increases, especially under drought conditions in regions accustomed to wet weather. These fires not only damage lands, but also emit greenhouse gases that trap heat in the atmosphere and contribute to global warming.

How We Study It: Our MODIS instruments on Aqua and Terra satellites provide a global picture of fire activity. MODIS was specifically designed to observe fires, allowing scientists to discern flaming from smoldering burns.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

3

A Short History of the Icelandic Banana Industry,

While Iceland is certainly not known for being a producer of the delicious tropical fruit, at one time the island south of the Arctic circle had a thriving banana industry.  Being an island in the North Atlantic, Iceland is very dependent on foreign imports.  However, during World War II shipments of fresh fruit and vegetables came to a halt due to wartime food shortages and the risk of U-Boat attacks.

Like most people living during World War II, the Icelanders had to learn to either do without or improvise with what they had.  The invention and discovery of cheap geothermal power helped provide a solution to the shortages.  In 1940 a number of facilities consisting of geothermal heated greenhouses were constructed in order to grow fresh fruit and vegetables.  Among the first crop was a pod of bananas, the first of which was harvested in 1941.  Production of Icelandic bananas was slow at first, due to lack of sunlight Icelandic bananas take two years to grow and mature.  Near the equator they only take of few months.  However by 1945 Iceland had developed a banana industry that was large enough to meet the demand of the island.

After World War II the Icelandic banana industry continued to thrive due to high import costs of fruit.  In 1960 the Icelandic government removed import tariffs for fruit.  The Icelandic banana industry quickly collapsed as cheap and abundant foreign bananas flooded the market.  Today, bananas are still grown in Iceland, although only by a few greenhouse owners. The Agricultural University of Iceland also operates a greenhouse with 600-700 banana plants.

“Airliner and Sun”, a winning photo from the World Meteorological Organization’s Calendar Photo Contest. It was taken in France by Sebastien Lebrigand.

“Ice Dragon”, another winning photo, taken in Slovenia by Marko Korosec.

The theme of the contest – ““Hotter, drier, wetter. Face the Future” – was chosen to illustrate the reality of climate change. As a result of heat-trapping greenhouse gases in our atmosphere, land and sea surface temperatures are rising. The frequency and intensity of extreme events like heatwaves and heavy rainfall is increasing. Without urgent action to cut carbon dioxide emissions, this trend will accelerate.

Louis Vuitton Men's RTW Spring 2015

Globetrotter extraordinaire Kim Jones finally made it to India in February, and said it surpassed all expectations — even though the show venue, a former greenhouse, matched the heat of the Indian desert in August. Yet apart from using the obligatory bright pink, the navy blue of that populous nation, Louis Vuitton’s men’s style director etched the theme lightly, winking to the hunting, military and sporting styles of maharajas mixed with “that modern Indian cool.”

The collection had a tangy, youthful allure, the straight-leg pants high and tight on the hips transmitting that same Seventies vibe favored by Nicolas Ghesquière, Vuitton’s new artistic director of women’s collections, who sat front-row.

The caramel trench that opened the show, in leather etched to resemble twill, exemplified Jones’ dialed-down, hyperluxurious approach. Ditto the gauzy polo shirts, their mottled patterns reminiscent of intricate Indian tie-dyes. “The richer the person, the closer together the lines are,” Jones explained during a preview. He added a Karakoram chevron, named after the spiky namesake mountain range, a motif used by Vuitton since the Twenties.

The collection exhaled luxury, from the shrunken aviator bombers and crocodile sneakers to the shearling-lined guitar case, an allusion to The Beatles’ 1968 visit to an ashram.

It was his Central Saint Martins professor, the late Louise Wilson, who had urged Jones to visit India, and he dedicated the show to her.

-WWD