climate

The Shiloh Pool. Illustration: depositphotos.com

Research on an ancient dam in Jerusalem indicates that water crises were being dealt with as early as 3,000 years ago

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Researchers from the Weizmann Institute and the Israel Antiquities Authority have dated the Siloam Pool Dam to the late ninth century BCE. In a commentary article in PNAS, Prof. Guy Bar-Oz and Prof. Gideon Avni from the University of Haifa emphasize the importance of water security.
A major ocean current system in the Atlantic Ocean, which helps regulate the Earth's climate, has been weakening for nearly 20 years. Credit: NOAA

A central Atlantic current has been weakening for almost 20 years, and the impact on weather could be global

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New study presents direct observational evidence of a weakening of part of the Atlantic overturning current system. Researchers warn of possible impacts on European winters, rainfall, storms and sea level rise
The increasing heat stress due to the climate crisis is particularly affecting older people. Illustration: depositphotos.com

Global study: Extreme heat is already limiting the ability to live, work, and move safely

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A global analysis of temperature and humidity from 1950 to 2024 shows that the number of hours during which heat and humidity limit safe daily activity has increased sharply, especially for those aged 65 and over and in hot, vulnerable areas.
A scanning electron microscope image of the benthic foraminifer Uvigerina peregrina, one of the species used in this study. The specimen was found in sediments that accumulated about 21,000 years ago in water depths of about 3 km off the coast of North Carolina. Credit Jack Wharton and Mark Stanley

Deep currents in the Atlantic Ocean continued to operate during the last ice age.

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A study in Nature suggests that a critical flow system did not completely collapse under extreme conditions, sharpening the debate about transition thresholds today.
Arid desert landscape in the Atlas Mountains, Morocco. Illustration: depositphotos.com

New study refutes the theory that human evolution in Africa was caused by climatic drying

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Brown University researchers have discovered that North Africa remained relatively wet even during a period of global climate change – a finding that challenges the link between drying and the paving of humanity.
A Basset Hound dog plays with a large stick in nature. Illustration: depositphotos.com

The hidden factor exacerbating the climate crisis – pets

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Although the ecological damage caused by cats has been well documented, research from Australia's Curtin University shows that dogs also pose a complex and significant environmental threat.
Illustration: An image showing the Orion Nebula in visible and infrared light. Astronomers have discovered that about 14 million years ago, the solar system sailed through the Orion Nebula, a dense region where stars are forming. This journey may have compressed the heliosphere and increased the amount of interstellar dust, which could have affected Earth's climate and left an imprint on the geological record. Credit: NASA, European Space Agency, and F. Summers, G. Bacon, Z. Levay, J. DePasquale, L. Hustak, L. Frattare, M. Robberto, M. Gennaro (STScI), R. Hurt (Caltech/IPAC), M. Kornmesser (ESA); Special thanks: A. Fujii, R. Gendler)

Scientists reveal that the sun's journey through the Orion Nebula could have changed Earth's climate

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About 14 million years ago, in the middle of the Miocene epoch, the solar system passed through the Orion Nebula. At the same time, the Earth cooled and the Antarctic ice sheet formed. Is there a connection between the two phenomena?
Science under a vortex. Illustration by Avi Blizovsky via DALEE

Even if you are not an American researcher, only receive funding if you sign to us that you are not involved in climate or diversity.

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Melting glaciers are slowing the Antarctic Circumpolar Current (ACC), the world's strongest ocean current, researchers have found. Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio

The Great Ocean Slowdown: How Antarctic Ice Loss Is Reshaping the Climate

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New research finds that melting ice in Antarctica is weakening the Antarctic Circumpolar Current (ACC) and could lead to worsening climate extremes, disrupting marine ecosystems, and reducing the ocean's ability to absorb carbon by 2050.
Invisible dust storm. Photo courtesy of the Tel Aviv University spokeswoman

50% of the dust storms in Israel are not recognized and this may endanger the public

In the eastern Mediterranean area there is desert dust in the air almost all year round, and not only in spring or autumn as is commonly thought. Why is this important?
The mobile phone can provide data to predict the development of forest fires. Credit: The Science website via DALEE. The image should not be seen as a scientific image

The mobile phones can warn of forest fires and extreme weather conditions

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A new study by Tel Aviv University found that the smart cell phones that are in the possession of each of us may help in collecting weather data (from the public) and in providing early warnings about weather conditions
Red city bus in Baku, Azerbaijan with eco design for COP29

COP29: Everything you wanted to know about the upcoming climate conference

The UN Climate Conference, which is expected to take place next week in Baku, is a critical opportunity to step up the fight against the climate crisis – especially in the case of Israel, which can contribute greatly to the world in the field of climate innovation.
The effects of the climate may be even more significant than the direct effects of man. Photo: pixabay

Not only man directly: the climate as a key factor in the distribution of mammals

From squirrels to wolves, mammals have a problem. A new study examined which threatens them more - direct human actions, or climate change
The climate swing. The illustration was prepared using DALEE and should not be considered a scientific image

The CO2-Driven Climatic Roller Coaster: A 485-Million-Year Journey

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A new study published in the journal Science detailed the fluctuations in the Earth's temperature over the past 485 million years, and highlighted the significant relationship between the Earth's temperature and the levels of carbon dioxide in the atmosphere
It's hotter in the summer. Illustration: depositphotos.com

Rain at the time

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Recent research has shown that in the future there will be fewer rainy days in our region due to the climate crisis, but there will be more heavy rain events. How can this be explained using simple scientific principles?
The Homo erectus tribe participates in the hunt. Illustration: depositphotos.com

Continuing the Tracing of Human Descent: The Impact of Climate on Out-of-Africa Migration

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Sediment studies in the Mediterranean reveal the existence of a green corridor in the Sahara desert that emerged at the exact time when our ancestors migrated from Africa about 2.1 million years ago
Monsoon rains in a rural area in India.

Heavy rain is about to fall

Weizmann Institute scientists have shown that dry air crossing the equator intensifies the monsoon rains over India. These surprising findings may improve the ability to warn against floods and be good news for hundreds
Mediterranean. Illustration: depositphotos.com

Researchers from Israel reveal the next generation of virtual reality and climate models

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Intel's research laboratories reveal 31 research projects that shape the future of artificial intelligence innovation, including two studies from Israel
Soft corals of the Dendronaphtia species, which are common in the Eilat and Red Sea region, were found at a depth of 42 meters in the Mediterranean Sea. Photo: Hagai Nativ, Morris Kahn Sea Research Station

Corals from the Red Sea have invaded Israel's Mediterranean coast

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Until now, the low temperatures of the Mediterranean water in winter have been a barrier to the arrival of tropical corals. The establishment of the Dendronaphtia we found indicates that at least last winter, the waters of the Mediterranean Sea were warmer than before
Green Wash. Illustration: depositphotos.com

Are compensations sufficient for the destruction of the environment?

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At the upcoming climate conference to be held in Dubai, ways to moderate global warming and the need to compensate the affected countries, especially island countries and countries in Africa, will be discussed again. Promises of compensation have already been given, but have not yet been fulfilled, and are being asked
This map depicts the global temperature anomalies for the meteorological summer in 2023 (June, July and August). It shows how much warmer or cooler different regions of the Earth were compared to the baseline average from 1951 to 1980: NASA Earth Observatory/Lauren Dauphin

Climate crisis dealt a strong blow: Summer 2023 was the warmest ever

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This raw data is analyzed using methods that take into account the variable distance between temperature stations around the world and the effects of urban heat islands that may distort the calculations.
extreme heat waves. Illustration: depositphotos.com

The impact of the climate crisis on extreme weather events

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Researchers are documenting the damaging impact of worsening drought and wildfires over the past three years
We have already passed the 1.5% limit. . Illustration: depositphotos.com

Earth's Ecological Limits: Urgent Action Required for a Sustainable Future

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According to preliminary research, we have already passed most of the limits of resource utilization. The world's resources, including the climate, biodiversity, water systems and other natural resources, have exceeded their limits and reached catastrophic levels. is there a way
A band of clouds in the equatorial region that is created due to the rise of air in the Hadley cell and is responsible for the strong precipitation in this region

Winds of climate change

For two decades, researchers have been trying to find a way to track a climate system that has a decisive influence on the location of rainforests and deserts on Earth. A new study solves the challenge and reveals the extent of the impact
The World Bank. Illustration: depositphotos.com

The World Bank is required to be transparent about its investments in fossil energy

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It turns out that the World Bank invests billions in fossil fuel projects, and many investments are made in a non-transparent manner. This situation must change
Namib desert beetle. Photo: Igor Karamlev, Paxel

Removes insects

Development of water collection and transport systems based on the characteristics of the desert beetle and the female beetle
The Butterfly Effect. Illustration: shutterstock

The butterfly effect - in reality

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The Sahel region, bordering the Sahara. The forest is greater than the sum of its trees. Source: Weizmann Institute magazine.

Planting forests in Africa and Australia may cool the planet

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Hurricane Harvey as seen from the International Space Station. Source: NASA.

How do you cool a hurricane?

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Urban shadow. A significant difference in the feeling of heat. Photo: Sawyer Bengtson on Unsplash.

Heavy thermal load

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Sandstorm in Iraq, 2005. Photo: Corporal Alicia M. Garcia, US Marine Corps.

The genetics of dust storms

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The drilling rig from which the core was mined. Source: Prof. Motti Stein - The Hebrew University.

The Dead Sea records global climate changes in the last 200 thousand years 

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snow in Jerusalem. Photo: Miriam Mezzera, Flickr.

Why is it colder in my house?

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Are you cold in winter? This does not mean that there is no climate change. Source: pixabay.com

Are you cold in winter? This does not mean that there is no climate change

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The average global warming of 2012 - 2016. Source: NASA.

NASA: 2016 was the hottest year since measurements began

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Sandstorm in Kuwait. Source: Molly John / flickr.

The Middle East is on fire

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NASA/JPL-Caltech/University of Arizona/University of Idaho

A unique weather system causes Titan's north polar region to be wet

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four Seasons. Photo: shutterstock

Empire of the Sun

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On January 31, a major winter storm swept across the central US, leaving a trail of snow from Arizona to Wisconsin. Image prepared by NASA's Goddard Space Flight Center from data captured by NOAA weather satellites.

The Jet Stream Gets Weird / Jeff Masters

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Prof. Ilan Koren. Global picture

squibs

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Snow women. in the UK. Photo: from Wikishare

"crazy" weather

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Dr. Mordechai Stein from the Earth Research Institute at the Hebrew University while drilling in the Dead Sea

The Dead Sea: A Warning from the Past

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Forecaster Danny Rupp, during the presentation of the forecast on Channel 10 on warmer days. Screenshot from YouTube

Survey in the USA: about half of the TV forecasters deny global warming

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Galapagos tortoises are the largest land tortoises in the world. In fact, the islands are named after the turtles, whose armor reminded the Spanish sailors of the shape of a saddle called Galapagos. Photo: Amir Gur (c)

Islands in the Humboldt Stream

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clouds

The blocking phenomenon

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Sinkhole in the Dead Sea. Photographed by Eliezer Schwartz, Jerusalem. From: Wikipedia

Comprehensive scientific drilling in the Dead Sea

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NASA logo

20 Future NASA Missions

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Camels near a waterhole in the Sahel desert

Cyclical climate changes in the Atlantic Ocean can affect droughts in regions far away from it

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Lactate isn't just a byproduct: Here's how it may worsen sepsis

How will global warming cause the world to freeze?

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Lactate isn't just a byproduct: Here's how it may worsen sepsis

Global warming was not caused by cosmic radiation

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