About us

We, as representatives of all scientific disciplines, are extremely worried about the increasingly visible climate change.

As scientists we are responsible to the whole of society, as articulated in our Plea for Systematic Climate Action. The plea, signed by more than 550 scientists, was submitted in January 2020 to legislative and executive authorities. Unfortunately, many positive values of science are being challenged, in large part due to the fact that the general public has grown reluctant to critically evaluate information, a phenomenon widely present in today’s society. In this sense our activities for facing climate crisis are directed towards the renewal of these broken connections.

As citizens, and as parents, we owe to the next and all subsequent generations a carefree future and a sustainable world. A large portion of our demands and activities stem from this fundamental sense of responsibility. Therefore, we wholeheartedly support the growing youth climate movement and encourage the articulation of its science-based demands.

We are scientists and climate change is a scientific fact, leading to an all-pervasive climate crisis. We see our role as scientists in this context.


As scientists we know that the worlds still has time for action, for diverting from the path of climate chaos.

In this sense, we are the part of the middle generation that dares to act, that stepped out of its academic comfort zone and away from lethargic defeatism of our generation, largely reconciled with the perspective of climate disaster. Instead, we put our knowledge, skills and the possibilities offered by scientific research at disposal and cooperate with all those who care for positive change. In this unity we want to contribute to the creation and evolution of a radical vision of hope in facing the climate crisis through building of a more just global society.

The bases of our activities are the demands listed in the Plea of Croatian Scientists for Systematic Climate Change, submitted to legislative and executive authorities in January 2020. Our activities are public and directed toward building and empowering a wide interdisciplinary and intersectoral climate movement in Croatia, connected with related organization in the world.

First of all, we wish to inaugurate and intensify a scientifically based, articulate debate on climate crisis in the general public. With our respective expertise we wish to contribute to the articulation and implementation of ambitious climate policies.

The second important mission of this group is providing support to existing and emerging climate initiatives. Apart from that, we will actively work on educating the general public on all aspects of the ongoing climate crisis. As scientists, we are aware of the depth of the crisis caused by decades of inaction or misdirected action. We are acutely aware that further inaction is unacceptable so we took action armed with our best tool – science.

We believe that our positive action toward facing climate crisis can lead to strengthening the general public’s confidence in science.

On climate change

Unlike meteorological phenomena (weather), climate is the average of weather conditions characteristic of an area. What we call climate change is global change, most evident in the change of temperature of the Earth’s surface and the lower layers of the atmosphere. These are general definitions, concerning all possible climate conditions. Clearly, there were many climate changes over the course of history of our planet, changes resulting from different, but always natural causes. This is an indisputable fact, but one that is not to be taken as an argument for justifying or denying climate change.

Namely, what is not only obvious, but also verified by billions of individual, systematized objective measurements conducted by tens of thousands of scientists, published in peer-reviewed scientific journals and ultimately turned into several thousands of pages of the Intergovernmental Panel for Climate Change (IPCC) report are several key facts on current climate change:

  1. The current climate change is neither the first nor the last in the geological history of our planet;
  2. Climate change can be caused by several different factors (including orbital changes, volcanoes, etc.), some of which can be anthropogenic;
  3. The current climate change is caused by temperature increase, which correlates directly to the rising concentration of greenhouse gases in the last 200 years, i.e. since the beginning of the industrial revolution;
  4. The increased concentration of greenhouse gases relates to the consumption of fossil fuels as main source of energy in the industrial age;
  5. A whole series of measured parameters clearly and undeniably demonstrates that the excess of CO2 in the atmosphere comes from fossil fuels;
  6. Large volcanic eruptions lead to short-term decreases in average global temperature, insignificant in comparison to the predominant trend of increase;
  7. Climate models (sophisticated programs containing best available theoretical models, which underwent a rigorous scientific verification and which enable the calculation of multidimensional problems using the most powerful available supercomputers) reproduce the current trends only after taking anthropogenic factors into consideration.

All of the above tells us that natural processes do not provide a sufficient set of parameters for modeling the current climate change. Consequently (but also using a much deeper analysis) we conclude that anthropogenic factors are the main contributor to the current climate change. These are objective facts based in science.

The consequence of all this is not “slightly warmer weather” – the increase in temperature is the result of a warmer atmosphere, and warmth, as we know, is a macroscopic consequence of kinetic energy of the particles composing the atmosphere. An increase in temperature results in a series of processes that we witness more and more frequently and that are most evident in extreme weather conditions: stronger and more frequent hurricanes, heatwaves in the summer and bouts of extreme cold in winter, droughts and floods, changing distribution of plant and animal species, sea level rise, melting glaciers, etc. Of course, all this has social consequences as well: we are witnessing mass migrations of people (in large parts caused by climate change) with the prospect of hundreds of millions of climate migrants, more frequent conflicts over basic resources (e.g. depleted water resources and scarce agricultural land due to desertification), but also the disappearance of whole traditional cultures due to the degradation of ancient environments.

These are complex processes, and science can give important guidelines for responding to them. It is important to bear in mind that the climate system is one of the most complex systems we know, ruled by a large number of parameters in constant mutual interaction through positive feedbacks povratne sprege. Therefore, it is important to recognize the so-called false solutions, most often coming from the field of geoengineering – the intentional modification of certain aspect of ecosystems in order to artificially reduce incident sunlight, etc. Several experiments have shown that these strategies do not work because they approach a very complex system in an oversimplified manner. What we need is a joint action by scientists from all disciplines, from natural sciences, to engineering and social sciences and humanities, in cooperation with social movements. We need new technologies, but they are not sufficient. They need to be accompanied by a change of the predominant social and economic paradigm based on an unfounded narrative of constant growth. This has to be the basis of the kind of Green New Deal we want.

Andreja Sironić

Stručna savjetnica u sustavu znanosti, u zvanju Znanstvenog suradnika

Nikola Medić

I am a PhD student at the University of Copenhagen. My research interest focuses on biological oceanography and phytoplankton physiology. Work I’ve done spanned many aspects of phytoplankton research: physiology, ecophysiology and biochemistry of microalge including stress response to phosphorus limitation, thermal stress and biotechnological potential. Currently I am investigating the impact of multiple environmental stressors (global warming, eutrophication, pollution and ocean acidification) on harmful algal blooms. The main focus is on the relation between mixotrophy and toxin production in toxic microalgae and their effect on the marine food web, aquaculture, fisheries and public health. Furthermore, I am applying my scientific knowledge for the development of public policy tools for water management. In my free time I contribute to scientific communication and science popularization.


Jelena Puđak

I am research associate at Institute for social sciences Ivo Pilar. My area of interest is social ecology, a branch of sociology that investigates interaction between society and nature. This means that I do research (both theoretical and empirical) on various aspects of human activity and its impact on environment, for example, motivation for engaging in green economy, attitudes and behaviour related to climate change and environment protection, different modes of sustainable development, efficiency of climate policy… I am author of books „Who Cares About Climate“ and „The Drop That Spilled Over the Glass – Climate Change: World and Croatia“.

Dubravka Vitali Čepo

I am an associate professor at the Faculty of Pharmacy and Biochemistry, University of Zagreb. I am the leader of several courses, at the graduate and postgraduate studies, thematically related to nutritional biochemistry, nutrition therapy and food-drug interactions. Also, as an associate in the course “Environmental Health” I teach about interconnections between changes in the environment, nutrition and health. The area of my scientific research is primarily focused on the development of sustainable processes for the extraction of bioactive compounds from secondary raw materials (such as food industry waste) and “green” formulation of nutraceuticals.  I am one of the signatories of the Appeal for Climate Action.