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There is no agent of ecological imperialism more ferocious than the wild pig. Wherever Europeans invaded, from the Americas to Australia, so did their pigs, many of which escaped into the countryside to wreak havoc. The beasts tear through native plants and animals, they spread disease, they destroy crops, and they reconstruct whole ecosystems in their wake. They’re not so much pests as they are chaos embodied.

Now add climate change to the wild pig’s résumé of destruction. In their never-ending search for food, the pigs root through soils, churning the dirt like a farmer tills fields. Scientists already knew, to some extent, that this releases the carbon that’s locked in the soil, but researchers in Australia, New Zealand, and the US have now calculated how much soil wild pigs may be disturbing worldwide. The carbon dioxide emissions that they produce annually, the authors concluded, equal that of more than a million cars.

It’s yet another piece of an increasingly worrisome puzzle, showing how modification of the land has — in this case, inadvertently — exacerbated climate change. “Anytime you disturb soil, you’re causing emissions,” says University of Queensland ecologist Christopher O’Bryan, lead author on a new paper describing the research in the journal Global Change Biology. “When you till soil for agriculture, for example, or you have widespread land-use change — urbanization, forest loss.”

Given their domination of whole landscapes, pigs had to be making things worse, the researchers knew, but no one had modeled it worldwide. “We started to realize there’s a big gap at the global scale looking at this question,” O’Bryan adds.

Examine a tirinha, publicada na conta do Instagram “Dinos and Comics”, em 03.07.2021.

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Metal airplane part seems to fall from plane into Arizona family’s backyard

An Arizona couple discovered what appeared to be a metal plate from an airplane in their backyard last week. Charlie and Jaclyn High of Phoenix found the white metal piece, which had fallen in their backyard, on Friday, CBS5 reported.

“I kind of looked around to see if there was anything else, like another piece, or something else other than that, with writing on it. It looks like it’s from an airplane, and you think, oh man, that’s crazy,” Jaclyn told the outlet. According to images shared with CBS5, the metal piece seems to be part of the airplane lavatory

Read the comic strips in order to answer the question.

A poeta e ativista palestina Rafeef Ziadah estava participando da cobertura jornalística do massacre em Gaza quando um jornalista não-palestino perguntou-lhe se as coisas não seriam melhores se os palestinos parassem de ensinar o ódio às suas crianças. Em resposta a essa pergunta, Ziadah compôs o poema “We teach life, sir”, transcrito a seguir:

Today, my body was a TV’d massacre
that had to fit into sound-bites and word limits.
And I perfected my English and I learned my UN resolutions.
But still, he asked me, Ms. Ziadah, don’t you think that
everything would be resolved
if you would just stop teaching so much hatred to your
children?
Pause.
I look inside of me for strength to be patient
but patience is not at the tip of my tongue as the bombs drop
over Gaza.
Today, my body was a TV’d massacre made to fit into soundbites and word limits
and move those that are desensitized to terrorist blood.
And these are not two equal sides: occupier and occupied.
And a hundred dead, two hundred dead, and a thousand dead.
And between that, war crime, and massacre,
I vent out words and smile “not exotic”, “not terrorist”.
No sound-bite will fix this.
We teach life, sir.

Question refer to the comic strip below:

Leia o texto Skyscraper Constructione a seguir.

Skyscrapers start with a very large hole in the ground which will contain the foundations, several floors, and possibly even a metro or subway station. The type of foundations depend on the nature of the ground. Usually they are made by drilling narrow, deep holes and filling them with reinforced concrete to form piles. Another method is to drive steel piles, as much as twenty meters in length, into the ground. A thick raft of concrete is laid on top of the piles.

Vertical steel columns are bolted to the foundations. Each column rests on a platform of steel to spread the load. Steel girders are fixed horizontally from column to column by Steel Erectors to form a strong framework. Metal decking is laid across the girders and filled with lightweight liquid concrete which is pumped up from the ground. When it sets, it forms the floors.

Ducts are installed below the floors to carry all services: electricity, water, drains. All exposed metalwork is fireproofed. If a fire happens, it is important that the structure can withstand high temperatures without buckling.

The same process is repeated as the building rises. In some construction methods, entire floors are built at ground level and hoisted in position by cranes.

The outside of the building is covered in cladding. This consists of prefabricated panels of materials such as stainless steel, aluminium, and glass.

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Apart from the impact on the environment, increasing use of air conditioning (AC) could have social and political effects. A new paper by researchers from the University of California, Berkeley and the University of Mannheim set out to understand the relationships between climate, income and residential air conditioning. Their model suggested that wider use of AC will save lives that would otherwise be taken by heartstroke or the exacerbation of other health conditions — 550,000 a year by 2050 in India alone — but it will disproportionately benefit those with higher incomes. Poorer people without AC are more likely to be less productive or to die than those who can afford it. Heat hinders learning and lowers test scores, causing poorer children to fall behind. And the use of AC itself contributes to global warming, making life even hotter for everyone.