WEBVTT

00:00:00.000 --> 00:00:03.020
I'm professor Hans Rosling.

00:00:03.020 --> 00:00:04.719
I hear some people say

00:00:04.719 --> 00:00:07.360
that global warming has stopped.

00:00:07.360 --> 00:00:11.560
They claim that temperature
has reached the plateau.

00:00:11.560 --> 00:00:16.399
So I regularly check
at the website of NOAA,

00:00:16.399 --> 00:00:21.519
National Oceanic and Atmospheric
Administration in US.

00:00:21.519 --> 00:00:24.120
Now these are the latest data,

00:00:24.120 --> 00:00:25.519
and I'm going to show you.

00:00:25.519 --> 00:00:28.839
The graph shows 12-months periods,

00:00:28.839 --> 00:00:31.519
from the year I was born, 1948,

00:00:31.519 --> 00:00:35.000
up and including August 2014,

00:00:35.000 --> 00:00:36.700
the latest data.

00:00:36.700 --> 00:00:41.200
And upwards is warmer periods,

00:00:41.200 --> 00:00:43.679
and downwards is cooler periods.

00:00:43.679 --> 00:00:46.719
And during my first 20 years of life,

00:00:46.719 --> 00:00:48.200
there were some warm periods,

00:00:48.200 --> 00:00:49.119
some cold,

00:00:49.119 --> 00:00:50.439
but since mid seventies,

00:00:50.439 --> 00:00:52.240
when I graduated from University,

00:00:52.240 --> 00:00:54.159
it has been going up like this!

00:00:54.159 --> 00:00:56.799
Ok, in the last years, here,

00:00:56.799 --> 00:00:59.399
there has been the tendence
of a plateau.

00:00:59.399 --> 00:01:01.159
But let me show you now

00:01:01.159 --> 00:01:04.339
the very last 12 month period.
Here we go.

00:01:04.339 --> 00:01:08.799
These are the data up
to including August 2014.

00:01:08.799 --> 00:01:13.000
It's the highest 12 months
period ever recorded!

00:01:13.000 --> 00:01:15.439
And to assess this,

00:01:15.439 --> 00:01:16.879
you have to draw a trendline,

00:01:16.879 --> 00:01:18.640
because weather change
year from year;

00:01:18.640 --> 00:01:21.000
climate change,
decade from decade.

00:01:21.000 --> 00:01:21.719
Here we go,

00:01:21.719 --> 00:01:24.000
this is the statistical trendline.

00:01:24.000 --> 00:01:25.159
and it goes up like this,

00:01:25.159 --> 00:01:27.319
and it makes sense when you look at it.

00:01:27.319 --> 00:01:32.840
The last 12 months data
confirm the long term trend:

00:01:32.840 --> 00:01:35.319
the temperature, on this planet,

00:01:35.319 --> 00:01:38.000
is getting higher and higher.