NAIROBI, June 5 (Xinhua) -- Kenya joined the rest of the world on Thursday in marking the World Environment Day by urging Kenyans to use alternative sources of energy and adopt eco-friendly livelihoods.

    This year's theme is "Kick the Habit Towards a Low Carbon Economy" aimed to focus on carbon and its effects on the environment.

    Kenya's Environment Minister John Michuki said the east African nation has domesticated the theme to a local context, christened "Kick the Habit, Reduce Air Pollution and Save Lives."

    Michuki, who led Kenya in marking the day celebrations in Eldoret, said the country faced big challenges due to over-exploitation and degradation of the environment.

    The minister noted that environmental considerations would be prioritized in all government development agendas.

    A statement from the Nairobi-based UN Environment Program (UNEP) said the agency launched a climate neutral network of corporations, cities and companies, known as CNNET, to energize the growing trend towards carbon neutrality.

    "If we are to move the global economy to a greener and cleaner one, a sharp reduction in the inefficient use of fossil fuels allied to an increased up take of renewable energy must be at the center of the international response," said UNEP Executive Director Achim Steiner.

    He noted that the Nobel-winning Intergovernmental Panel on Climate Change (IPCC) concluded that greening the global economy might cost as little as a few tenths of global gross domestic product (GDP) annually over the next 30 years.

    "It will also be a driving force for innovation, new businesses and industries and employment opportunities across the developed and developing worlds," he added.

    There are promising signs, driven by the existing emissions reduction treaty -- the Kyoto Protocol -- and even deeper emissions reductions are on the horizon, he noted.

    For example, close to 60 countries have targets for renewables, including 13 developing countries, while around 80 have market mechanisms in place to encourage renewable energy development.

    On the occasion of World Environment Day, UNEP also launched a guide to low-carbon living, entitled "Kick the Habit: The UN Guide to Climate Neutrality," as well as "Climate Change Adaptation and Mitigation in the Tourism Sector," a report prepared in collaboration with the UN World Tourism Organization (UNWTO).

    Adopting a low-carbon lifestyle does not necessarily require drastic changes, according to UNEP.

    Simple changes such as waking up to a traditional wind-up alarm clock rather than an electronic one, or drying clothes on a washing line versus a tumble dryer can all help to reduce greenhouse gases.

    Steiner pointed out that some choices are big -from smart taxes to encourage offshore wind farms as opposed to more coal-fired power stations - while others are small, such as thinking about which appliances to buy and how to travel.

    "But multiplied across the world and acted upon by 6.7 billion people, the public have the power to change the future -- have the power to personally and collectively influence economies to 'Kick the CO2 Habit'," he said.

    Top on the agenda of this year's world environment day is to increase awareness on the impact of emissions of carbon in the atmosphere.

    Climate change has been top on the agenda in many forums globally, because its effects are already being felt, with developing countries mostly affected.

    UN Secretary-General Ban Ki-moon called on individuals, companies and governments alike to kick their addiction to carbon dioxide, a main contributor to global warming.

    "Our world is in a grip of a dangerous carbon habit," said in his message for the Day, which was received here on Wednesday.

    "Addiction is a terrible thing. It consumes and controls us, makes us deny important truths and blinds us to the consequences of our actions," he added.

    Ban stressed that global warming was becoming the defining issue of the era and will hurt the rich and poor alike.

    "Mitigating climate change, eradicating poverty and promoting economic and political stability all demand the same solution: we must kick the carbon habit," he stated.