The science of complexity is probably the greatest challenge of all, greater than that of the very small on the left and the very large on the right.

There's nothing wrong with big, crazy challenges.

The real challenge then, is to try to figure out how we can change rules.

The selection of indicators has proven to be challenging.

That challenge could be met only if there was consensus on what the nature of the new Organization should be.

But deciphering the script is a very challenging task.

That was challenging.

Challenges and likelihood of achieving target

It's a very challenging task. But more to come later.

Accordingly, the protection obligations of the United Nations were becoming increasingly challenging and complex.

This is challenging work to do.

In several parts of the world, energy is an especially challenging issue since households rely on wood for their energy consumption.

It's going to be very challenging to deal with.

He said that there was a greater challenge ahead, the challenge of poverty, of climate change global challenges that needed global solutions and needed the creation of a truly global society.

The Biodiversity Challenge

In fact, it is a challenging concept for both developed and developing countries.

Production of the Treaty Series through the database was a particularly challenging aspect of the project.

And so, that allows you the flexibility to go into very challenging terrain and actually make your way where you want to go.

If strategies to deal with those challenges are to be effective and successful, they have to be comprehensive in nature and address the root causes and negative consequences of the conflict.

Sustained economic growth is likely to become increasingly challenging, as donor aid for post conflict needs is being gradually phased out.

Determining an optimal level of accountability for results is also challenging.

And that's that's rather more challenging than all the speakers before me and all the ones coming after me.

At the best of times, traveling between Indonesia's many islands is challenging.

I look back on a few years of incredibly hard, but at the same time challenging, work.

Every effort should be made by all States parties to contribute actively to building the knowledge base that will be conducive to the ability of the Conference to perform its most challenging functions.

6. The Council reaffirms the importance of ensuring the universality, objectivity and non selectivity of the consideration of human rights issues.

DM She's very tough it's most challenging.

The past year was indeed very challenging for the humanitarian community.

Breadth, balance and cohesion in the curriculum will be achieved through classroom learning experiences that are positive, challenging, stimulating and enjoyable.

Challenging gender based violence

The drama here is, in fact, that it may show that the climate challenge is the easy one, if you consider the whole challenge of sustainable development.

Pool is geometry... in its most challenging form a science of precise angles and forces.

(c) Conduct of inspection and compliance missions, with a particular focus on the most challenging locations worldwide (40)

B. The nature of the emerging challenge

Effective implementation of such commitments is indeed a complex and challenging task, which requires political will and adequate resources.

His eight years of service as Director General of UNIDO had been a challenging time to which he had devoted all of his energy.

This function should produce high level decisions directions of a strategic nature.

Eritrea considers the deployment provocative.

The challenges of the Millennium Declaration, contained in the Secretary General's report entitled In larger freedom , are transnational in nature and trans institutional in terms of possible solutions.

And this is a very challenging idea. It's a very challenging idea to mainstream media. It's a very challenging idea to anyone who has invested an enormous amount of time and expertise, and who has a lot of energy invested in the notion that he or she knows better than everyone else.

In fact, some of them actually survived the Internet challenge, and some got even more repressive.

The year under review has been a challenging one for the United Nations, but the challenges have created an opportunity to debate change in the Organization.

We're putting this enormous load on them for three or four days and it's very challenging, Mora said.

We have committed ourselves to challenging goals, in particular to reducing extreme poverty by half by the year 2015.

The past year was particularly challenging for achieving the objectives of disarmament, arms control and non proliferation.