Despite their widespread and sometimes severe impacts on biodiversity, dogs can also benefit some species and ecosystems. In some regions, dogs and their keen noses have been trained to help scientists find threatened species such as Tiger Quolls. Elsewhere they are helping to flush out and control feral cats.
The biggest environmental impact associated with our animal companions comes from producing meat-based pet food, which uses land, water and energy resources, and is a significant source of greenhouse gas emissions. According to one estimate, owning a medium-size dog can have a similar carbon footprint to a large SUV.
84.9 million or 67% of American households own at least one kind of pet. 63.4 million or 53% of American households own dogs. Most dog-owning households have one dog.
"There are many impacts of pets on the environment," says Gregory Okin, UCLA Geography professor and author of a recent study into the environmental impact of pets. "But they can also carry disease, pollute waterways, and coastal zones through runoff from areas with feces, and have adverse effects on wildlife.
Pet waste doesn't just decompose. It adds harmful bacteria and nutrients to local waters, when it's not disposed of properly. It might not seem like a stormwater problem, but animal waste is one of the many seemingly small sources of pollution that can add up to big problems for water quality, and even human health.
In a book on sustainable living published in 2009, Vale & Vale estimated that a medium sized dog has the same carbon footprint, or paw print, twice that of an average sized SUV. Pets are responsible for 64m tonnes of greenhouse gases per annum, which is the equivalent of 13m cars (Okin, 2017).
Dogs have a bigger carbon footprint than cars, according to scientists. They calculated it used 55.1 gigajoules of energy annually over its lifetime, which includes what's needed to build the car and run it. The SUV's eco footprint is about 0.41 hectares – less than half that of the dog.
Let's take a look at some of the miraculous ways animals help us.
- Bees are powerful pollinators.
- Beavers combat climate change.
- Llamas patrol farms.
- Rats detect landmines.
- Squirrels help trees take root.
- Narwhals assist scientists.
- Elephants create a source of water for other species.
- Birds balance nature.
More frequent and severe weatherHigher temperatures are worsening many types of disasters, including storms, heat waves, floods, and droughts. A warmer climate creates an atmosphere that can collect, retain, and drop more water, changing weather patterns in such a way that wet areas become wetter and dry areas drier.
Increased heat, drought and insect outbreaks, all linked to climate change, have increased wildfires. Declining water supplies, reduced agricultural yields, health impacts in cities due to heat, and flooding and erosion in coastal areas are additional concerns.
Increases in pests and diseases and more frequent and intense droughts and floods, reduce the availability of food. Heat-stress causes poor yields, or worse, crop failures. Reducing short-lived climate pollutants gives us our best chance to rapidly limit global temperature rise and reduce the risks to food security.
Invest in energy-efficient appliances.That's about the same amount as the annual carbon pollution coughed up by nearly 440 million cars. “Energy efficiency is the lowest-cost way to reduce emissions,” Haq says. When shopping for refrigerators, washing machines, and other appliances, look for the Energy Star label.
Q: What causes global warming? A: Global warming occurs when carbon dioxide (CO2) and other air pollutants and greenhouse gases collect in the atmosphere and absorb sunlight and solar radiation that have bounced off the earth's surface. That's what's known as the greenhouse effect.
Global WarmingCarbon dioxide and other gases trap heat in the atmosphere, causing global temperatures to rise. Although carbon dioxide has natural sources, such as volcanic eruptions, human activities have caused an increase from 280 parts per million before the development of industry to 370 parts per million today.
Scientists agree that today's warming is primarily caused by humans putting too much carbon in the atmosphere, like when we choose to extract and burn coal, oil, and gas, or cut down and burn forests.
Scientists generally regard the later part of the 19th century as the point at which human activity started influencing the climate. But the new study brings that date forward to the 1830s.
The Germanwatch institute presented the results of the Global Climate Risk Index 2020 during COP25 in Madrid. According to this analysis, based on the impacts of extreme weather events and the socio-economic losses they cause, Japan, the Philippines and Germany are the most affected places by climate change today.
While everyone around the world feels the effects of climate change, the most vulnerable are people living in the world's poorest countries — like Haiti and Timor-Leste — and the world's 2.5 billion smallholder farmers, herders and fisheries who depend on the climate and natural resources for food and income.
Climate change is accelerating the sixth extinctionWorld biodiversity has declined alarmingly in half a century: more than 25,000 species, almost a third of those known, are in danger of disappearing. Climate change will be responsible for 8% of these.
As climate change threatens the habitats and food sources of tigers, this iconic species also becomes vulnerable to poaching and to conflicts with communities. In many cases, protecting tigers — specifically by preserving their habitat, which is often forest — also helps combat climate change.
Over the last century, the average surface temperature of the Earth has increased by about 1.0o F.
Global warming affects more than just plant biodiversity—it even alters the way plants grow. "When temperatures rise, plants grow taller in order to cool themselves off. Their stalks become taller and their leaves become narrower and grow farther apart.
Assisted migration — picking species and moving them to a new location — and modifying current habitats to make them more hospitable are other possible actions that could help species survive in a warming world.
Now, climate change is exposing sea turtles to even greater existential threats. Sea level rise and stronger storms will erode and destroy their beach habitats. Warming oceans will change ocean currents, potentially introducing sea turtles to new predators and harming the coral reefs some of them need to survive.
Global warming refers only to the Earth's rising surface temperature, while climate change includes warming and the “side effects” of warming—like melting glaciers, heavier rainstorms, or more frequent drought. Said another way, global warming is one symptom of the much larger problem of human-caused climate change.
“Global warming” refers to the rise in global temperatures due mainly to the increasing concentrations of greenhouse gases in the atmosphere. “Climate change” refers to the increasing changes in the measures of climate over a long period of time – including precipitation, temperature, and wind patterns.
It is caused by increased concentrations of greenhouse gases in the atmosphere, mainly from human activities such as burning fossil fuels, deforestation and farming.
- Burning fossil fuels.
- Deforestation & Tree-Clearing.
LOWERN
- Latitude. It depends on how close or how far it is to the equator.
- Ocean currents. Certain ocean currents have different temperatures.
- Wind and air masses. Heated ground causes air to rise which results in lower air pressure.
- Elevation. The higher up you are, the colder and drier it will be.
- Relief.
- Nearness to water.
