It seems everything is peaking these days. You've heard of peak oil - the point at which our global oil extraction starts falling. There's also discussion of peak food, peak wood, peak phosphorous, peak water and peak rare earths. Now here's a new one for you: peak cars.

Shrinking stature Climate change is reducing the size of many animal and plant species, including some which supply vital nutrition, according to a new study. From micro-organisms to top predators, nearly 45 per cent of species for which data was reviewed grew smaller over multiple generations due to climate change, researchers found.

Human interaction with endangered species isn't always a death sentence for the animals. With careful coaxing and vigilance, some species have been brought back from the edge of extinction to thrive once again. KNOWN LOCALLY AS 'AL MAHA', the Arabian oryx ( Oryx leucoryx) is a regal-looking beast that features in Arabic poetry and paintings.

The humble backyard vegie patch is back in vogue in the suburbs of Australia. But can growing spuds and greens in the cities really avert a coming food crisis? "WE HAVE TWO SETS of needs as humans...sociability and sustenance," says Carolyn Steel, author of Hungry City and lecturer at Cambridge University.

See movements of the world's air traffic

Dimensions takes important places, events and things, and overlays them onto a map of where you are. Type in your postcode or a place name to get started.

Share worksheets with your Cool Kids. We provide a personalised link to forward to your students. This allows your students to complete their activity and send it back to you. It will be automatically recorded and linked to your Cool account. You will find your students' work in your dashboard.

Create maps re: Food Security using the Latest FAO Data

Today a food security index that ranks individual countries on food affordability, accessibility, availability, nutritional value and safety was published for the first time. A food security index is becoming increasingly important given the growing world population (expected to swell from 7 billion to 9 billion people by 2050) and the potential limits on our ability to provide food in coming years.

With the GBCA officially launching their new Green Star - Communities PILOT rating tool last week, questions are once again arising surrounding sustainable communities - and rightly so. The human race is living beyond its means, with the impacts of that behaviour evident in human-induced climate change, soil degradation, depleting resources, food scarcity, loss of biodiversity, species extinction and more.

The Green Building Council of Australia's (GCBA) recently-released Green Star - Communities rating tool has been received an overwhelmingly positive response since its announcement. "This great new tool goes to the heart of what we are seeking to achieve with our National Urban Policy - and that is to make our cities more productive, sustainable and liveable," said Minister for Infrastructure and Planning Anthony Albanese upon the announcement of the rating tool.

The Green Building Council of Australia (GBCA) has released a national rating tool, which is being lauded as the standard that will 'transform Australia's cities and communities'. Green Star - Communities is the highly speculated upon new rating system that goes beyond the certification of singular buildings and offers to raise the standard of and recognise sustainable communities.

There once was a creek that began in the hills of Rainworth (Brisbane, Australia) and flowed through what is now Rosalie Village, where it mingled with a large swamp (now Gregory Park) before winding its way through Milton to the Brisbane River.

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Australian Water Education Toolkit Resources: Water for the Future priorities taking action on climate change, securing water supplies, using water wisely, supporting healthy rivers. Irrigation, Murray-Darling Basin, water quality, wetlands

Browse the timeline of war and conflict across the globe.

Learn subject specific words,terms and vocabulary while playing a game of hangman!

(1) Ecotourism (2) People & Environment (3) Cities in Australia (4) Jakarta: an Asian Mega City (5) Migration & Development: a New Perspective (6) Energy Trends in Resource Management (7) Global Population Trends (8) The Sensitivity of Wetlands and Water Resources to Climate & Catchment Change in the Murray Darling Basin (9) Drought, Government & Communities (10) Water in Aboriginal Communities in South Australia (11) New Global Migrations & Implications for Australia (12) Water Issues in the Lower Murray Darling Basin (13) Geographers responding to Climate Change (14) New Global Migrations & their implications (15) Water Resources in the Lower Murray (16) Water Alternatives for Adelaide (17) Australia's Population and the Future (18) Population Policy in the Australian Context (19) Water Alternatives for Adelaide (20) Population Trends & Issues Relating to Ageing of Australia's Population (21) Water Security

Incredible stories from our world Discover amazing human stories from around the world through television and radio clips from BBC programmes such as Human Planet , Amazon with Bruce Parry and Tropic of Cancer . Human Planet Explorer enables you to browse a selection of clips that showcase man's relationship with the natural environment.

General Global Geographic Issues (hunger, water, disease) YouTrust is for people who want to make a difference. You curate the content. You be the editor. You ignite debate.