No challenge poses a greater threat to future generations than climate change.
One year doesn't make a trend. But this doe 14 of the 15 warmest years on record have all fallen in the first 15 years of this century.
The best scientists in the world are all telling us that our activities are changing the climate, and if we do not act forcefully, we'll continue to see rising oceans, longer, hotter heat waves, dangerous droughts and floods,
and massive disruptions that can trigger greater migration, conflict, and hunger around the globe.
The Pentagon says that climate change poses immediate risks to our national security. We should act like it.
The most costly thing we can do is to do nothing.
If we don't act as a species, our future is in peril. We need to cut emissions radically.
An economic model based on indiscriminate growth inevitably leads to greater consumption and to greater CO2 emissions.
There can and must be growth in the future in many low carbon parts of the economy: in green technologies,
in public transportation, in all the care-giving professions, in the arts and of course in education. Right now, the core of our
gross domestic product is comprised of just consumption, imports and exports. We need to make cuts there. Anything else would be self-deception.
The system in which we live is overly obsessed with growth -- it's one that sees all growth as good.
We are focussing on renewable energy not for laurels but to lighten the homes of the poor, bring a change in their lives.
Conserving energy is the need of the hour.
Keep in mind that climate change is just one more example of how the environment will cause health problems, and I think most people understand that.
The state of the global climate in 2015 will make history as for a number of reasons.
Levels of greenhouse gases in the atmosphere reached new highs and in the Northern hemisphere
spring 2015 the three-month global average concentration of CO2 crossed the 400 parts per million barrier for the first time.
2015 is likely to be the hottest year on record, with ocean surface temperatures at the highest level since measurements began.
It is probable that the 1°C Celsius threshold will be crossed. This is all bad news for the planet.
I think India has some stark choices ahead of it.
If it goes into coal, it will not contain its air pollution problems; if it goes into renewables, it will have a much better chance of a sustainable future.
Rich, high emitters should be held accountable for their emissions, no matter where they live.
The global climate negotiations are critical for a world without hunger.
Now 50% of our entire operation is addressing a combination of climate and conflict.
What’s now clearer than ever that our future will be 100% clean energy, and that dirty fossil fuels are merely riding out their final wave.
Providing access to home solar kits across rural Kenya has the power to transform and enhance the lives of children and those living in remote communities.
We are the generation that has to change everything.
We have to speed up the conversation.