4000 snow cannons and half a glacier. These are the requirements for the plan of a Dutch researcher who wants to reverse climate change in Switzerland. The idea originates from glacier scientist Hans Oerlemans, who presented his spectacular plan at the annual meeting of the European Geosciences Union in Vienna.
Category: Climate change
If all the ice melts on earth, the oceans rise about 70 meters. But before something like this happens, the globe must be much warmer than it is now. The 80 meter rise in sea would then add another 30 meters because the existing liquid water expands - after all, hot water has a larger volume than cold water.
From fossils in the Sahara it can be seen that there was once a humid and lush area. It always seemed that the Sahara alternated between a dry and humid climate at the pace of the ice ages, so with a rhythm of around 100,000 years. But new research shows that it happened much more often.
It is 2099. The Arctic ice has disappeared and the largest glaciers on earth - those in Greenland and Antarctica - are pouring billions of cubic meters of meltwater into the sea. Enormous areas in Africa, Asia and South America have become hot, arid deserts and because of the sea rise, the now 11 billion people in the earth are like herring in a ton in the temperate zones of the planet.
It started with three forest fires in Portugal. Then a forest fire raged in Siberia the size of Belgium. And in Gran Canaria 1000 people had to be evacuated because of an uncontrollable sea of flames. In the summer of 2019, the newspapers are full of stories about forest fires in all corners of the world. And that's no coincidence: more and more are coming.
The willow tree waving its branches in the peat land. The lonely, gnarled oak in the meadow. The beech that gently cradles at the edge of the forest. Trees have long been seen as a valuable weapon in the fight against rising CO2 levels in the atmosphere, which causes higher temperatures and therefore plays a decisive role in climate change.
The greenhouse effect is a term used in connection with climate change and global warming. But what is the greenhouse effect and how does it arise? In this article you can read about the phenomenon that influences the climate on earth. What is the greenhouse effect? The greenhouse effect is a name for the ability of the atmosphere to retain the radiant heat from the earth's surface.
Global warming and climate impact The ice is melting, the water is rising and the weather is becoming more extreme. The effects of climate change caused by people are clearly visible. But global warming has an impact in all sorts of ways - including our daily lives.
1. Humid heat threatens people © Getty Images In the countries around the Persian Gulf, rising temperatures and high humidity threaten life in large cities such as Doha, Dubai and Abu Dhabi. When sweat evaporates on your skin, heat is dissipated. But due to high humidity, this process is made impossible.
CO2 is emitted in all forms of incineration - from volcanic eruptions to the barbecue in your garden. But the amount of CO2 emitted by man has been increasing exponentially for some time, causing the natural ecosystems of the earth to become unbalanced. CO2 from fossil fuels such as oil and natural gas does not naturally belong in the atmosphere.
One of the most powerful greenhouse gases is nitrous oxide (N2O), better known as nitrous oxide. This gas forms around 10 percent of man-made greenhouse gases and retains heat 300 times as efficiently as CO2. Once nitrous oxide has been released, for example through agriculture, it can remain in the atmosphere for 120 years.
In July 2014, a huge crater suddenly appeared on the Jamal Peninsula in northwestern Siberia. Within a few weeks two more such holes were discovered on the Siberian tundra. The craters with a diameter of 80 meters led to all kinds of theories about, for example, meteorite impacts and weapon tests.
After years of failed attempts, researchers have now developed entirely new methods for capturing and storing CO2. 1. Icelandic power plant converts CO2 into limestone The defused CO2 can be seen in this drilling sample as small white crystals. © Arni Saeberg & Sandra O. Snaebjornsdottir / OR Researchers have found a method for converting CO2 from the magma in the soil into solid minerals at Hellisheidi, an Icelandic geothermal plant.
10 million pumps with wind power have to take seawater from the depth and spray it over the Arctic ice. Here, with the harsh winter cold of -35 to -40 ° C, the seawater will quickly freeze and thicken the waning ice cap. Climate scientists warn that global warming may have disappeared from the North Pole in the summer of 2030 due to global warming, and because of this bleak prospect, a team of researchers from Arizona State University in the US have devised the spectacular rescue plan.
The ice in the North Pole is melting at an alarming rate. That is why a research team from the University of Lapland in Finland has come up with technical projects to prevent glaciers from sliding into the sea and melting. The researchers used the glacier at Pine Island in western Antarctica as an example.
How much CO 2 can you save? The British Ministry of Energy has developed a CO 2 calculator with 14 parameters that you can vary. In this way it is easy to see with which measures a good result can be achieved quickly and which sacrifices we have to make. With the CO 2 calculator you are in control of the climate yourself.
The amount of ice must return to the level of about 15 years ago. That is the ambitious goal of an equally ambitious project. The inventors of the project are a group of researchers from Arizona State University in the US. They have come up with a (relatively) simple solution to the problem that the ice in the North Pole is melting at lightning speed.
Only 20 kilometers of ice prevents a huge ice floe from coming loose from the Larsen C ice sheet in the sea near the west of Antarctica. In December 2016, a crack in the ice sheet grew by no less than 18 kilometers within a few weeks, making it 113 kilometers long now. "It will surprise me if the ice floe doesn't break down within a few months," said Adrian Luckman, professor at Swansea University in Wales.
NASA observation satellites did not bring good news this month: the sea ice around the South Pole shrunk to the lowest level since the start of the measurements in 1979 in the first months of 2017. On February 22, there was only 2.2 million square kilometers of sea ice at Antarctica, against 2.7 million square kilometers last year around that time.
The Earth has almost always had an unusually stable climate, and major changes have been slow. But which mechanisms are behind this? The prevailing views The 'feedback mechanisms' of the earth are climate mechanisms that strengthen or weaken themselves. The carbon cycle, which has kept the temperature stable for a long time, is such a mechanism.
Climate changes are a fact, and as a result, the temperature will rise in the coming century and the polar ice will melt. The biggest culprit in the story of global warming is CO2 - a greenhouse gas that is emitted by power plants and traffic, among other things, and that covers the earth like a blanket and blocks energy from the sun.