New research suggests, that rises in levels of methane in our atmosphere is being driven by biological sources, such as swamp gas, cow burps, or rice fields, rather than fossil fuel emissions. Atmospheric methane is a major greenhouse gas that traps heat in our atmosphere, contributing to global warming. Its levels have been growing since 2007, and in 2014 the growth rate of methane in the atmosphere was doubled previous years, largely driven by biological sources than fossil fuel emissions.
September 27, 2016
University of Royal Holloway London
This new evidence is extremely useful for the scientific community, it definitely gives an insight to the rapid rise in global warming. Gas emissions should be regulated, the emissions of carbon dioxide and methane are known sources, and what contributes it to the world. The increase of these gases are beginning to get out of hand and slowly they will get out of control. The emissions of greenhouse gases are underestimated, and need to be taken control of.
Myth: Animals and plants can adapt
Corals, trees, birds, mammals, and butterflies are adapting well to the routine reality of changing climate.
Scientist state a large number of ancient mass extinction events have been strongly linked to global climate change. Because current climate change is so rapid, the way species typically adapt is not be possible due to the speed increase. Global change is occurring too rapidly. Scientist believe that we are heading to the 6th mass extinction. However, just because adaptation exists it does not mean it is applicable to all situations. Adaptation takes time but there is a limit to how fast they can evolve. More than 40% of animals are in endangerment of extinction at the end of the century. If the animals can evolve rapidly the plants also have to. Because that is going to affect their food source, therefore both plants and animals have to be able to adapt rapidly which makes it fairly impossible at the rate of global climate change
Is extreme weather caused by global warming?
Myth: Extreme weather isn't caused by global warming
Most people are ignorant and do not accept the fact that the climate is changing due to pollution. Since they do not have a strong science background they ignore all the facts and conclude that its just weather acting on its self. The 30 major droughts of the 20th century were likely natural in all respects. They are indicative of what could also happen in the future.The increase rate of evapotranspiration, is the total evaporation of water from soil, plants and water bodies. This can have a direct effect on the fequency and intensity of droughts.Along with a warmer atmosphere it can hold more water vapour. The atmosphere now holds 4% more water vapour than it did 40 years ago as a result of increasing temperatures. This increases the risk of extreme rainfall events. In the context of global warming, this means that rising temperatures increase the odds of extreme events occurring. This is the facts people are missing and should know before jumping to conclusions
A new study found by the University of Washington a trend toward earlier sea ice melt in the spring and later ice growth in the fall across all 19 polar bear populations. This can negatively impact the feeding and breeding capabilities of the bears. Polar bears are among the animals most affected by the seasonal and year-to-year changes in Arctic sea ice. Because they rely on this surface for essential activities such as hunting, traveling and breeding. Nineteen separate polar bear populations live throughout the Arctic, spending their winters and springs on sea ice and hunting.
September 14, 2016
University of Washington
The Polar bears are one of the hundreds of species in endangerment of extinction. I think Polar bears need to be protected better. The shorter sea ice season is really affecting the bear’s diet. The Polar bears have evolved mainly to eat seals, which provide necessary fats and nutrients in the harsh Arctic environment. Polar bears can't outswim their prey, so they perch on the ice and ambush seals at breathing holes or break through the ice to access their dens. They are capable of existing on land for part of the year, but the sea ice is where they obtain their main food source. This is why it is so important to keep a healthy environment for the Polar bears.
I LOVE POLAR BEARS:)
A new study suggests, 4.6 billion years ago, space rocks pummeling the Earth kept it hot and molten. As the planet grew bigger the heat and pressure kept precious metals trapped within its upper layers rather than allowing them to sink into the newly forming core. Later, chemical reactions with sulfur pulled the metals deep down. This discovery is giving scientists insight on how the planet formed. In the first 100 million years or so of Earth’s existence, the planet grew to about 60 percent of its modern-day mass, the conditions kept the highly siderophile elements (the gold) in the planet’s middle layer, the mantle, rather than dropping into the core.
This new discovery is a huge advancement in the science world.Scientist all over the world have been trying to figure out how the earth first formed. Scientist might even be able to extend this sort of approach to other planets and make predictions about their early histories. Gold is a nonrenewable resource because it is an natural earth product. However this explains why there is not very much gold on earth’s outer layer because most of it is in earth’s Iron rich core.
Where the Young hot Earth Cached its Gold
By: ALEXANDRA WITZE
SEPTEMBER 8, 2016
According to a new study, tiny ripples of sediment on ancient seafloor, captured inside a 3.7-billion-year-old rock in Greenland, may be the oldest fossils of living organisms ever found on Earth.In the Isua Greenstone Belt in southwestern Greenland, there was a discovery of the oldest rocks on the Earth's surface. Layered mounds of sediment and carbonates that build up around colonies of microbes that grow on the floor of shallow seas or lakes. More than 4 billion years ago, a period of intense volcanic activity when large meteorites and icy comets frequently bombarded Earth. That was once subject to intense underground heating and pressure, which distorted their original shapes and changed their chemical composition of the rock.
This discovery is a huge new study that is found to be very interesting in the science communitty. Those 3.5-billion-year-old stromatolites, found in sedimentary rocks are found to be similar to the environment in Mars today, and , may hold many answers to how life started. It is a very valuable piece in the science community, and further studies are yet to be held for this new discovery.