UNITED NATIONS: Marking the International Mother Earth Day, UN Secretary-General Ban Kimoon appealed on Tuesday for worldwide changes in attitude and practice to curb the negative impact of human activity on the planet.

`From tropical deforestation to depleted ocean fisheries, from growing freshwater shortages to the rapid decline of biodiversity and increasingly polluted skies and seas in many parts of the world, we see the heavy hand of humankind,` the UN chief said.

As part of the organisation`s efforts to drive home the importance of respecting and protecting the planet towards ensuring `the future we want`, the general assembly convened an interactive dialogue on `Harmony with Nature` to commemorate the day.

Mr Ban said: `The air we breathe, the water we drink and the soil that grows our food are part of a delicate global ecosystem that is increasingly under pressure from human activities.

As such, and with a growing population, everyone must recognise that consumption of the planet`s resources is unsustainable. `We need a global transformation of attitude and practice. It is especially urgent to address how we generate the energy that drives our progress,` said the secretary-general, emphasising that burning fossil fuels is the principal cause of climate change, which increasingly threatens prosperity and stability in all regions.

`That is why world leaders have pledged to reach a global legal climate agreement in 2015.

He said that action on climate change presents multiple opportunities to `reset our relationship` with Mother Earth and improve human wellbeing, especially for the poorest and most vulnerable. Sustainable energy for all can increase health, wealth and opportunity for billions of people, as can climate-smart agriculture, more efficient cities, and better managed and protected forests.