Earth science

Prof. Noa Shankar diving (Photo: Hadas Zion)

Plastic chemical additives pollute the corals and harm their development

The harmful chemicals can be found in a wide variety of consumer products such as food packaging, toys, medical devices, adhesives and more
A burnt mud brick from Tel Batsh (Biblical Timna) with markings for measuring the magnetic orientation.

The magnetic field in the remains of fires makes it possible to discover the true story behind the descriptions in the Bible

A multidisciplinary study was able to date 21 layers of destruction in 17 archaeological sites in the State of Israel, with the help of measuring the direction and strength of the Earth's magnetic field, as they were "recorded" during the burning of the sites,
the oxygen cycle. Image: depositphotos.com

The oxygen dance: the amount of oxygen in the atmosphere rose and fell in significant fluctuations until the appearance of land plants

The discovery also has value in a completely different field - the search for life on planets outside the solar system
Deep sea sharks in the Palmachim surf. Credit_ The research team led by the University of Haifa, Seas and Lakes Research for Israel and the partner institutions within the Mediterranean Research Center

For the first time, a marine reserve was declared in the middle of the sea: Palmachim surf

This announcement more than doubles the area of ​​protected marine areas in the maritime space in Israel and is a leap forward in the protection of the unique natural values ​​in the Mediterranean Sea
Floods in Pakistan, 2010. Image: depositphotos.com

Forecasting floods using machine learning with an accuracy of over 90%

The use of remote sensing technologies from the ground and space together with past data and the use of machine learning are necessary for research to predict extreme weather events
Illustration of a possible mechanism for creating a disturbance in the electron charge density in the ionosphere before an earthquake. From the study

Machine learning of atmospheric phenomena may improve earthquake prediction

A study by researchers at the university examined data from before earthquakes occurred, in order to predict based on past data when conditions exist that increase the likelihood of an earthquake in a certain area according to atmospheric changes
An asteroid hitting the Earth, the most famous illustration of catastrophe, but the real catastrophe comes from human hands. Image: depositphotos.com

How will humans survive an apocalypse? A new study on the consequences of the corona virus has an answer

One of the ideas for saving humanity in the event of a deadly epidemic or other major global disaster is to create a safe haven where some people can survive
A stand selling Nile princess fish in Kampala, the capital of Uganda. Image: depositphotos.com

The rise and fall of the Nile princess

In recent decades - after reaching a peak due to the population of Lake Victoria with the predatory fish that was not there before, the fishing productivity in Lake Victoria is decreasing due to overfishing and mortality due to water pollution.
Building the system together with the local guys

Israelis voluntarily built a water system for 5,000 children in Tanzania

The Africa team, Engineers Without Borders Israel Tel Aviv branch recently returned from a two-week mission in Tanzania. The project deals with the supply of clean drinking water to rural areas in Africa and has 20 volunteers from diverse fields who manage
Antarctica. Photo: depositphotos.com

The time capsule that hides in the ice of Antarctica

An international research expedition is currently drilling in the depths of the Antarctic ice, with the aim of finding out why the ice ages significantly lengthened over a million years ago. Their findings may also help in understanding the rise in global temperatures that we are experiencing today
Morocco: an oasis in the Sahara desert. Photo: depositphotos.com

Pisgah to stop the desert

According to the head of the climate services of the United Nations World Meteorological Organization (WMO) "even when the amounts of rain remain the same, because of the warming water evaporates and the area dries out
Traffic jam in Tel Aviv, February 2022. Photo: Avi Blizovsky

Feel Tel Aviv from below

Researchers examined what happens under the city's asphalt non-stop - and what seismic tremors cause cars, pedestrians and cyclists
Heavy rain and lightning storms illustration: depositphotos.com

Extreme rains and their risks

Between rain and flood, between time and terrain, between yesterday and tomorrow
A chain reaction of tectonic plates. Courtesy of the researchers

The movement of the tectonic plates works according to a chain reaction

An international group of geologists, including researchers from Ben Gurion and Tel Aviv University, discovered a connection between earthquakes in different parts of the world
Thwaites Glacier in West Antarctica. Photo: NASA

Antarctica's "doomsday" glacier: its collapse could cause coastal cities to flood and islands to be swallowed

Adding 65 cm to the global sea level will completely change the coastlines. To date, the sea level has risen by about 20 cm since 1900, which is already forcing coastal communities out of their homes and exacerbating problems
By World Travel Tourism Council - Richard Leakey, photo from 2015. Institute, CC BY 2.0, from Wikipedia

Adventures in Africa: Prof. Yoel Reck of Uni' Tel Aviv paid tribute to Richard Leakey, the naturalist who died this week

Leakey knew how to discover fossils of ancient human species even as a child, as the son of famous parents, but he also cared about preserving nature and fighting ivory dealers, received two kidney transplants and a liver transplant, lost
Boys from the Maasai tribe in Kenya lead their cows to drink water. Illustration: depositphotos.com

A polluting controller?

In the past I have already referred to the need to reduce meat consumption in the face of the significant differences between the industrial form of farming in large farms in Western countries and nomadic herders, mainly in African countries. They are still not considered
cab. Illustration: depositphotos.com

Sensors will be placed on taxis in the US to monitor the urban climate

The study seeks to deal with the uncertainty in monitoring the urban climate. Despite being characterized by sharp variations both in time and space, and having significant consequences on the quality of life, the economy and the cost of living, however it turns out
The archaeological site in Wadi Paynan. Credit: Thomas Levy

Recordings of the magnetic field from 9,000 years ago teach us about the magnetic field today

Burnt flint tools from prehistoric sites make it possible to determine the strength of the Earth's magnetic field in ancient times. The information about the magnetic field in ancient times may have implications for the understanding of the magnetic field in our time. The researchers:
The fire in the mountains of Jerusalem against the background of the castle. Photography: Ehud Amir

Against the backdrop of the climate crisis, the fire in the Jerusalem mountains points to the danger of planting

In the fire in the Jerusalem Mountains that broke out on August 15, thousands of animals died and about 25,000 dunams of forest (about 25 square kilometers) burned - more than burned in the Carmel disaster in 2010. Could anything be done, especially in view of
A building destroyed by an earthquake. Illustration: depositphotos.com

Know the "nucleation point" to predict earthquakes

The findings, according to the research leaders, PhD student Shahar Gebirtzman and Prof. Jay Feinberg from the Rakah Institute of Physics, are the beginning of the answer to the question regarding the existence of earthquakes of different intensities that originate from identical tectonic plates. The study was published
diamonds. Courtesy of Dr. Jacob Weiss, Hebrew University

How can through diamonds decipher geological mysteries of over billions of years?

A team of researchers succeeded, by deciphering the ages of tens and hundreds of millions of years old diamonds, to identify three different periods of their formation at a depth of about two hundred kilometers below present-day South Africa. Dr. Jacob Weiss:
Seal. . Photo: depositphotos.com

Scientists call for a global action plan: saving the oceans to protect human health

European scientists have proposed the first steps towards a unified global plan to save our oceans, for human health and the well-being of us all
The climate crisis. Image: depositphotos.com

Public involvement and political support are essential for success in any country's fight against the climate crisis

This is according to a study presented as part of an international expert workshop on behalf of the Israel Public Policy Institute (IPPI) and the Ministry of Environmental Protection. The discussion presented guiding principles for climate legislation in Israel, the key elements for effective legislation and what can be learned
The continental ice sheets at the poles can affect each other, because of the water that flows between them. Photo: Alex Rose – Unsplash

A conversation between glaciers

A study revealed a connection between the melting of the glaciers in the Arctic Circle and those in Antarctica * A similar feedback but in the opposite direction (of increasing ice) took place at the beginning of ice ages
Shells. Photo: depositphotos.com

The shells that will reveal to us the state of air pollution in the ocean

Joe Biden, the elected president of the USA. Photo: depositphotos.com

Summary of 2020 in the environment: not only Corona

Following the Corona virus, we were destined to face new challenges that had a great impact on the person and the environment: instead of personal meetings, we switched to meetings on Zoom and other online platforms, we traveled the country and avoided social gatherings
The eruption of the Tongorhua volcano in Ecuador, 29/11/2011. Photo: shutterstock

Things Yoram knows: what calms the volcanoes?

Naama Erzi asks: Why do volcanoes stop being active?
Fire in California. The cumulative damage of the fires was about 16.5 billion dollars. Photo: Andrea Booher/FEMA

The crossroads of the insurance industry

The American Oceanic and Atmospheric Agency, NOAA, estimates the extent of damage from natural disasters caused by climate change or extreme weather between the years 2020-1980 at approximately 1.8 trillion dollars. The insurance companies can no longer
The autonomous research vessel Milefour. IBM Photo

The autonomous ship has set off

IBM and Peru Mare's autonomous ship MAYFLOWER is expected to cross the Atlantic Ocean to collect environmental data
Damage after the earthquake in Tahiti in 2010. Photo: UN Photo, Logan Abassi

Can animals warn of earthquakes?

A new study tried to check whether animals can actually sense earthquakes before they happen and whether this can be used to prepare for an emergency ahead of time
Herds of animals in Africa. Photo: COLOMBO NICOLA/Shutterstock

Economic nature conservation

Measurements from the floor that collapsed during the burning of Jerusalem during the destruction of the First Temple. Photo: Shai Halevi, Antiquities Authority

The Earth's magnetic field tells the story of the destruction of the First Temple

An infographic illustrating the geological periods and the major extinctions in between. Illustration: shutterstock

Assessment: Huge emissions of C02 from volcanic activity caused a mass extinction of species about 200 million years ago

A NOAA expedition examines the melting of the ice in the Arctic Ocean in the summer of 2005. Photo: NOAA

Oceans on high heat

The balance of precipitation in the Mediterranean region as of January 2012, brown shades show a decrease in the amount of water compared to the average of the years 2002-2015 in the Mediterranean region in centimeters. The data from Levin GRACE – a joint mission of NASA and the German Space Agency. Photo: NASA/Goddard

The Mediterranean climate is getting drier as a result of global warming

A display illustrating the danger to animals in the sea as a result of the plastic waste that fills the sea, at the Natural History Museum of Berlin. Photo: Avi Blizovsky

The biggest "predator" in the oceans

Mangrove forests. A means of preventing seawater flooding. Photo: shutterstock

Nature against climatic disasters

Fisherman's Wharf at the "Virgin" beach, Kiryat Yam. Right: You can see the expansion of the beach over the years. On the left: according to a local phenomenon of sand accumulation from the north and increased erosion from the south of the "Virgin" pier, the significant flow component was identified - from north to south

Who moved my beach?

Foam waves to the shores of the Baltic Sea. Photo: shutterstock

What was the temperature of the water in the ancient ocean?

Wilson facility - for waste collection in "Plastic Island". PR photo

Clean the plastic from the sea - take 2